Mitchell uStream One User manual

User Guide
Manual de Instrucciones
Guide de l’utilisateur
Benutzerhandbuch
Guida utente
Bluetooth True Wireless Stereo Hi-Fi Speaker Set
Altavoces Bluetooth True Wireless Stereo Hi-Fi
Ensemble hi-fistéréo sans fil- Bluetooth
Bluetooth True Wireless Stereo-HiFi-Lautsprecherset
Set di altoparlanti Hi-Fi stereo Bluetooth True Wireless

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ESPAŃOL
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DEUTSCHE
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ITALIANO
ESPAŃOL ITALIANO

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ESPAŃOL
FRANÇAIS
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© Mitchell Acoustics Limited UK 2021 uStream One IB Ver 2.0 Rev 1
A Thank You From Paul Mitchell
Thank you for deciding to purchase this Mitchell Acoustics product. It means a lot to me as I
have worked hard and had many sleepless nights designing and developing it and I truly hope
that it exceeds your expectations and that you enjoy using it.
This instruction manual will give you a general idea of how this device operates, as well as
providing you with information on safety procedures and cleaning. In order to maintain this
product in good condition and to ensure its safe operation, please take a few minutes to read
and carefully follow all the safety and operating instructions found in this manual.
Please retain this instruction manual for future reference and pass it along with the device if
handed over to a third party. Should you have any additional questions regarding the
operation or installation of this device, or should any problems arise from its use, then please
contact a specialised dealer or our service team for further information.
We assume no liability for any damage incurred as a result of improper use resulting from
failure to comply with the safety instructions found in this manual. Under such circumstances
all claims under warranty will become null & void. We assume no liability for any consequential
damage!
This product is EMV-certified and complies with all European, US and other national guideline
requirements. All the relevant testing has been carried out and certification has been received.
A declaration of conformity can be found at the end of this manual.
For further information please visit www.mitchellacoustics.co.uk.
Yours sincerely,
Paul Mitchell
Founder & CEO
Mitchell Acoustics Ltd
Conforms to UL STD 62368-1 & CSA STD C22.2 NO.62368-1

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© Mitchell Acoustics Limited UK 2021 uStream One IB Ver 2.0 Rev 1
A Thank You From Paul Mitchell
Thank you for deciding to purchase this Mitchell Acoustics product. It means a lot to me as I
have worked hard and had many sleepless nights designing and developing it and I truly hope
that it exceeds your expectations and that you enjoy using it.
This instruction manual will give you a general idea of how this device operates, as well as
providing you with information on safety procedures and cleaning. In order to maintain this
product in good condition and to ensure its safe operation, please take a few minutes to read
and carefully follow all the safety and operating instructions found in this manual.
Please retain this instruction manual for future reference and pass it along with the device if
handed over to a third party. Should you have any additional questions regarding the
operation or installation of this device, or should any problems arise from its use, then please
contact a specialised dealer or our service team for further information.
We assume no liability for any damage incurred as a result of improper use resulting from
failure to comply with the safety instructions found in this manual. Under such circumstances
all claims under warranty will become null & void. We assume no liability for any consequential
damage!
This product is EMV-certified and complies with all European, US and other national guideline
requirements. All the relevant testing has been carried out and certification has been received.
A declaration of conformity can be found at the end of this manual.
For further information please visit www.mitchellacoustics.co.uk.
Yours sincerely,
Paul Mitchell
Founder & CEO
Mitchell Acoustics Ltd
Conforms to UL STD 62368-1 & CSA STD C22.2 NO.62368-1

ENGLISH
ENGLISH
© Mitchell Acoustics Limited UK 2021 uStream One IB Ver 2.0 Rev 1
Table of Contents
Before use
Please read this instruction manual thoroughly before operating this device and retain it for further reference.
Following and heeding all the information found in this instruction manual will maintain this product in good
condition and ensure its safe operation. This instruction manual contains information on how to operate and
maintain this device. Should a component require maintenance, servicing or repair, then please consult a
qualified dealer or service technician.
1
Quickstart Guide
2
Intended Use
3
Safety Information
4
In the Box
5
Description of Parts
6
Initial Setup
Initial Positioning and Power On
Connecting to a Smart Device to use as preferred sound source
Adjusting the volume with remote control handset
Connecting Other Devices
Connection of Analog RCA Audio Cables
Connection of Optical TOSLINK Cables
7
Disposal
8
Troubleshooting
9
Specifications
10
DECLARATION OF CONFORMITY
8
10
11
12
13
18
18
18
19
19
19
19
20
21
22
24

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© Mitchell Acoustics Limited UK 2021 uStream One IB Ver 2.0 Rev 1
Table of Contents
Before use
Please read this instruction manual thoroughly before operating this device and retain it for further reference.
Following and heeding all the information found in this instruction manual will maintain this product in good
condition and ensure its safe operation. This instruction manual contains information on how to operate and
maintain this device. Should a component require maintenance, servicing or repair, then please consult a
qualified dealer or service technician.
1
Quickstart Guide
2
Intended Use
3
Safety Information
4
In the Box
5
Description of Parts
6
Initial Setup
Initial Positioning and Power On
Connecting to a Smart Device to use as preferred sound source
Adjusting the volume with remote control handset
Connecting Other Devices
Connection of Analog RCA Audio Cables
Connection of Optical TOSLINK Cables
7
Disposal
8
Troubleshooting
9
Specifications
10
DECLARATION OF CONFORMITY
8
10
11
12
13
18
18
18
19
19
19
19
20
21
22
24

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© Mitchell Acoustics Limited UK 2021 uStream One IB Ver 2.0 Rev 1 9 of 1168 of 116
USA / Canada
Europe / UK
UK adaptor
AC power adaptor
1. Quickstart Guide
1. Find a suitable location for your uStream One speakers. Make sure the surface is
stable with enough space for the power cable to be connected.
2. Locate the 2 white boxes containing the AC power adaptors and cables.
3. Insert the power cable from the AC adaptor into the 24V socket on the rear panel
of each speaker.
4. Locate the power cables relevant for your location. Discard the other power
cables.
Plug one end of the power cable into the 2-pin socket on the AC power adaptor
and the other end into a mains power socket.
Turn the power switch on the rear of the speaker to ON.
5. Position speakers.
PLEASE NOTE SWITCH THE LEFT SPEAKER ON FIRST. This will become Speaker 1.
Turn each speaker on by pressing the power button for 2 seconds.You will hear a
voice response ‘Power On’ to confirm, followed by the default mode, ‘Bluetooth’.
6. Once each speaker is powered on, press the TWS button on the LEFT speaker (not
both). The voice response ‘Connecting to speaker 2’ will be heard, followed a few
seconds later by the voice command ‘Speaker 2 connected’
7. On the Bluetooth device you would like to connect to the speakers, look for
‘uStream One’ on the list of available devices to connect to and select it. The
voice command ‘Connecting to Bluetooth..Bluetooth connected’ will be heard.
NOTE: if you are seeing more than one ‘uStream One’ listed in the BT devices
on your device it means Left and Right speakers are not connected to each
other. Go back and follow the steps in 4. above.
8. Any sounds playable on your phone will now come from the uStream One
speakers in STEREO.
BEFORE USING REMOTE CONTROL PLEASE SEE PAGE 15.
9. Use the supplied remote control handset (point it at the LEFT Speaker) to
increase the volume to maximum. To do this you must repeatedly press the
‘Vol +’ button on the remote. When maximum volume is reached you will
hear a series of loud ‘Beeps’.
Now you can use the volume control on your device to adjust the overall
volume.

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© Mitchell Acoustics Limited UK 2021 uStream One IB Ver 2.0 Rev 1 9 of 1168 of 116
USA / Canada
Europe / UK
UK adaptor
AC power adaptor
1. Quickstart Guide
1. Find a suitable location for your uStream One speakers. Make sure the surface is
stable with enough space for the power cable to be connected.
2. Locate the 2 white boxes containing the AC power adaptors and cables.
3. Insert the power cable from the AC adaptor into the 24V socket on the rear panel
of each speaker.
4. Locate the power cables relevant for your location. Discard the other power
cables.
Plug one end of the power cable into the 2-pin socket on the AC power adaptor
and the other end into a mains power socket.
Turn the power switch on the rear of the speaker to ON.
5. Position speakers.
PLEASE NOTE SWITCH THE LEFT SPEAKER ON FIRST. This will become Speaker 1.
Turn each speaker on by pressing the power button for 2 seconds.You will hear a
voice response ‘Power On’ to confirm, followed by the default mode, ‘Bluetooth’.
6. Once each speaker is powered on, press the TWS button on the LEFT speaker (not
both). The voice response ‘Connecting to speaker 2’ will be heard, followed a few
seconds later by the voice command ‘Speaker 2 connected’
7. On the Bluetooth device you would like to connect to the speakers, look for
‘uStream One’ on the list of available devices to connect to and select it. The
voice command ‘Connecting to Bluetooth..Bluetooth connected’ will be heard.
NOTE: if you are seeing more than one ‘uStream One’ listed in the BT devices
on your device it means Left and Right speakers are not connected to each
other. Go back and follow the steps in 4. above.
8. Any sounds playable on your phone will now come from the uStream One
speakers in STEREO.
BEFORE USING REMOTE CONTROL PLEASE SEE PAGE 15.
9. Use the supplied remote control handset (point it at the LEFT Speaker) to
increase the volume to maximum. To do this you must repeatedly press the
‘Vol +’ button on the remote. When maximum volume is reached you will
hear a series of loud ‘Beeps’.
Now you can use the volume control on your device to adjust the overall
volume.

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© Mitchell Acoustics Limited UK 2021 uStream One IB Ver 2.0 Rev 1 11 of 11610 of 116
2. Intended Use
This device is an integrated active speaker designed to have various audio components or Bluetooth
devices connected to its inputs.
Please adhere to all of the safety information and instructions found in this instruction
manual.
3. Safety Information
The following safety and hazard warnings are not only for the protection of your device, but also serve as
a protection against potential health hazards. Please take time to read the following instructions
carefully.
We assume no liability for personal or property damage resulting from the failure to comply
with the safety instructions, or from improper operation or handling. Under such
circumstances, all claims under warranty will become void
- For safety and certifcation reasons any unauthorized modification and/or changes to the device is prohibited and will void
the warranty and all warranty claims.
- Any persons operating, installing, setting up, or servicing this device must be trained and qualified accordingly, and observe
these operating instructions.
- Ensure that the device has been set up correctly by following all the instructions found in the instruction manual
- Power supply cables should be routed so that they are not likely to be walked on, squashed or pinched by items placed
upon or against them. Pay particular attention to cords at plugs, power outlets, and at the point at which they exit from the
device. Avoid exposing the cable to extreme heat or cold. Ignoring the above mentioned instructions could result in cable
damage and present the danger of an electric shock.
- In order to completely cut offthe power supply to the device, unplug the power plug from the wall outlet. Merely turning the
device offwith the ON/OFF button is not sufficient. Also make sure that power outlets are easily accessible.
- Always pull on the plug’s grips and never on the cable to remove it from a wall outlet. Unplug the device from the power
outlet if not in use for a longer period of time.
- Never use the device, if the power cable or device is damaged.
- The speakers should never come into contact with water or moisture and no objects filled with liquids such as vases, should
be placed on the speakers.
- Operate the speakers in a moderate climate and never expose them to extreme temperatures, such as high humidity.
- Make sure the speakers are placed on a firm and stable surface or mounted on suitable stands or mounting brackets.
- Please note that excessive sound pressure created when listening to loud volume levels for extended periods can lead to
permanent hearing damage.
- Please adhere to the additional safety information found in the individual chapters of this instruction manual.
-When connecting other devices, please refer to the safety and operating instructions found in the literature accompanying
the device.
- Clean only with dry cloth.
-Please contact us or a service technician for further information, should you be in doubt about device
operation, safety or when making connections, or if any questions arise that are not explained within this
manual.
- Contribute to a better environment by using a designated recycling site for the disposal of
packaging material.
Electromagnetic Interference
-The normal function of the product may be affected by strong electromagnetic interference from other devices. If so,
simply reset the product to resume normal operation by following the user manual. If this fails it may be necessary use the
speakers in a different location.

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© Mitchell Acoustics Limited UK 2021 uStream One IB Ver 2.0 Rev 1 11 of 11610 of 116
2. Intended Use
This device is an integrated active speaker designed to have various audio components or Bluetooth
devices connected to its inputs.
Please adhere to all of the safety information and instructions found in this instruction
manual.
3. Safety Information
The following safety and hazard warnings are not only for the protection of your device, but also serve as
a protection against potential health hazards. Please take time to read the following instructions
carefully.
We assume no liability for personal or property damage resulting from the failure to comply
with the safety instructions, or from improper operation or handling. Under such
circumstances, all claims under warranty will become void
- For safety and certifcation reasons any unauthorized modification and/or changes to the device is prohibited and will void
the warranty and all warranty claims.
- Any persons operating, installing, setting up, or servicing this device must be trained and qualified accordingly, and observe
these operating instructions.
- Ensure that the device has been set up correctly by following all the instructions found in the instruction manual
- Power supply cables should be routed so that they are not likely to be walked on, squashed or pinched by items placed
upon or against them. Pay particular attention to cords at plugs, power outlets, and at the point at which they exit from the
device. Avoid exposing the cable to extreme heat or cold. Ignoring the above mentioned instructions could result in cable
damage and present the danger of an electric shock.
- In order to completely cut offthe power supply to the device, unplug the power plug from the wall outlet. Merely turning the
device offwith the ON/OFF button is not sufficient. Also make sure that power outlets are easily accessible.
- Always pull on the plug’s grips and never on the cable to remove it from a wall outlet. Unplug the device from the power
outlet if not in use for a longer period of time.
- Never use the device, if the power cable or device is damaged.
- The speakers should never come into contact with water or moisture and no objects filled with liquids such as vases, should
be placed on the speakers.
- Operate the speakers in a moderate climate and never expose them to extreme temperatures, such as high humidity.
- Make sure the speakers are placed on a firm and stable surface or mounted on suitable stands or mounting brackets.
- Please note that excessive sound pressure created when listening to loud volume levels for extended periods can lead to
permanent hearing damage.
- Please adhere to the additional safety information found in the individual chapters of this instruction manual.
-When connecting other devices, please refer to the safety and operating instructions found in the literature accompanying
the device.
- Clean only with dry cloth.
-Please contact us or a service technician for further information, should you be in doubt about device
operation, safety or when making connections, or if any questions arise that are not explained within this
manual.
- Contribute to a better environment by using a designated recycling site for the disposal of
packaging material.
Electromagnetic Interference
-The normal function of the product may be affected by strong electromagnetic interference from other devices. If so,
simply reset the product to resume normal operation by following the user manual. If this fails it may be necessary use the
speakers in a different location.

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© Mitchell Acoustics Limited UK 2021 uStream One IB Ver 2.0 Rev 1 13 of 11612 of 116
4. In the Box
Here is what you will find in the box. The accessories can be found in 2 plain white boxes.
Please check all these parts are present before proceeding. Please inform your dealer if any part is
missing or damaged.
2 x uStream One Speakers 1 x Remote control handset
4 x mains power cable (2 x North America, 2 x Europe)
2 x UK mains adaptor (located in the bottom of the packaging)
2 x AC Mains Adaptor (100-240v)
5. Description of Parts
FRONT
1. Tweeter (High frequency driver)
2. Remote Control Receiver
3. Woofer (Low Frequency driver)
TOP
1. Power button: press and hold for 2 seconds to turn
on, press and hold for 5 seconds to turn off. (*The unit
will turn offautomatically after 15 min if no signal input).
2. Mode Button: Press and hold for 2 seconds for
option list, in a sequence of function is
BLUETOOTH / AUX-IN / LINE-IN / OPTICAL. Each press is
accompanied by a voice command confirming the mode.
3. Play/Pause button: Press and hold for 2 seconds to play
the track, then press and hold for 2 seconds to pause
the track. Press and hold for 5 seconds to discounnect
BT connection.
4. Volume+/ Next Button: Long press to access the
next track in the playlist. Short press to increase the
volume.
5. Volume-/ Previous Button: Long press to access the
last track in the playlist. Short press to lower the
volume.
6. TWS button: Short press either one to connect the
speakers, the unit will be automatically on TWS mode.
(The units will automatically attempt to connect via TWS
when powered on once initial setup has been done, so
use of this button is only necessary if pairing ever fails
due to repositioning the speakers)

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© Mitchell Acoustics Limited UK 2021 uStream One IB Ver 2.0 Rev 1 13 of 11612 of 116
4. In the Box
Here is what you will find in the box. The accessories can be found in 2 plain white boxes.
Please check all these parts are present before proceeding. Please inform your dealer if any part is
missing or damaged.
2 x uStream One Speakers 1 x Remote control handset
4 x mains power cable (2 x North America, 2 x Europe)
2 x UK mains adaptor (located in the bottom of the packaging)
2 x AC Mains Adaptor (100-240v)
5. Description of Parts
FRONT
1. Tweeter (High frequency driver)
2. Remote Control Receiver
3. Woofer (Low Frequency driver)
TOP
1. Power button: press and hold for 2 seconds to turn
on, press and hold for 5 seconds to turn off. (*The unit
will turn offautomatically after 15 min if no signal input).
2. Mode Button: Press and hold for 2 seconds for
option list, in a sequence of function is
BLUETOOTH / AUX-IN / LINE-IN / OPTICAL. Each press is
accompanied by a voice command confirming the mode.
3. Play/Pause button: Press and hold for 2 seconds to play
the track, then press and hold for 2 seconds to pause
the track. Press and hold for 5 seconds to discounnect
BT connection.
4. Volume+/ Next Button: Long press to access the
next track in the playlist. Short press to increase the
volume.
5. Volume-/ Previous Button: Long press to access the
last track in the playlist. Short press to lower the
volume.
6. TWS button: Short press either one to connect the
speakers, the unit will be automatically on TWS mode.
(The units will automatically attempt to connect via TWS
when powered on once initial setup has been done, so
use of this button is only necessary if pairing ever fails
due to repositioning the speakers)

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© Mitchell Acoustics Limited UK 2021 uStream One IB Ver 2.0 Rev 1 15 of 11614 of 116
REAR
1. DC in 24V 3A. Insert the round connector at the end of the AC adaptor cable.
2. Power On/Offswitch
3. AUX IN 3.5mm stereo jack socket
4. RCA Left and Right stereo line input
5. OPTICAL IN for TOSLINK optical input
6. USB input for USB firmware upgrade
Remote Control Handset
1. Power On from standby mode
2. Previous Track
3. Volume Down
4. Mode Changer
5. Volume Up
6. Next Track
7. Play/Pause. Press and hold for 5 seconds to discounnect BT connection.
Remote Control Handset Battery
The remote control handset is supplied with
a CR-2032 battery. However, it has been
deliberately fitted in reverse to preserve the
battery life before first use.
Remove the battery tray as indicated and
remove the battery and replace with
numbers facing down. Then replace the
battery tray as indicated.

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© Mitchell Acoustics Limited UK 2021 uStream One IB Ver 2.0 Rev 1 15 of 11614 of 116
REAR
1. DC in 24V 3A. Insert the round connector at the end of the AC adaptor cable.
2. Power On/Offswitch
3. AUX IN 3.5mm stereo jack socket
4. RCA Left and Right stereo line input
5. OPTICAL IN for TOSLINK optical input
6. USB input for USB firmware upgrade
Remote Control Handset
1. Power On from standby mode
2. Previous Track
3. Volume Down
4. Mode Changer
5. Volume Up
6. Next Track
7. Play/Pause. Press and hold for 5 seconds to discounnect BT connection.
Remote Control Handset Battery
The remote control handset is supplied with
a CR-2032 battery. However, it has been
deliberately fitted in reverse to preserve the
battery life before first use.
Remove the battery tray as indicated and
remove the battery and replace with
numbers facing down. Then replace the
battery tray as indicated.

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© Mitchell Acoustics Limited UK 2021 uStream One IB Ver 2.0 Rev 1 17 of 11616 of 116
Information on handling batteries
Please adhere to the following information when handling batteries and rechargeable batteries.
⁃Keep batteries out of children’s reach.
⁃Never leave batteries lying around unsupervised. If swallowed these could pose a choking hazard
to children and pets. Seek emergency medical care immediately, should this happen.
⁃Batteries are hazardous and do not belong in household waste.
⁃Ensure correct polarity when inserting batteries.
⁃Never expose batteries to extreme temperatures, such as sunlight, fire, ovens, etc. there is a risk
of explosion!
⁃Make sure that batteries are not dismantled, short-circuited or are thrown into fire.
⁃Touching leaking or damaged batteries could cause skin burns. Use protective gloves suitable for
handling such batteries.

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© Mitchell Acoustics Limited UK 2021 uStream One IB Ver 2.0 Rev 1 17 of 11616 of 116
Information on handling batteries
Please adhere to the following information when handling batteries and rechargeable batteries.
⁃Keep batteries out of children’s reach.
⁃Never leave batteries lying around unsupervised. If swallowed these could pose a choking hazard
to children and pets. Seek emergency medical care immediately, should this happen.
⁃Batteries are hazardous and do not belong in household waste.
⁃Ensure correct polarity when inserting batteries.
⁃Never expose batteries to extreme temperatures, such as sunlight, fire, ovens, etc. there is a risk
of explosion!
⁃Make sure that batteries are not dismantled, short-circuited or are thrown into fire.
⁃Touching leaking or damaged batteries could cause skin burns. Use protective gloves suitable for
handling such batteries.

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© Mitchell Acoustics Limited UK 2021 uStream One IB Ver 2.0 Rev 1 19 of 11618 of 116
6. Initial Set Up
Power Connection
1. UK use there is an adaptor into which the two-pin European cable should be inserted as shown in the
Quickstart Guide. Connect the relevant AC power cable to the supplied AC adaptor.
2. Connect the AC adaptor cable to the back of each device.
3. Connect the AC power cable to the mains supply.
4. Switch the power on via the on/offswitch on the rear of each speaker.
Initial Positioning and Power On
1. The LEFT speaker should be powered on FIRST and will always be Speaker 1.
2. Power on the speakers by pressing on the top panel for 2 seconds.
3. Confirmation voice will be audible. ‘Power on’ with confirmation of mode.
TWS (True Wireless Stereo) Connection
1. Make sure that the speakers do not have an active Bluetooth connection with a device. Turn off
bluetooth on the device you intend to connect to the speakers before pairing the speakers to each
other.
2. Press the “TWS” button on Speaker 1 (Left speaker) to initiate the automatic pairing mode between the
two units. There is a voice confirmation ‘Connecting to Speaker 2’ followed by ‘Speaker 2 connected’.
NB: In True Wireless Stereo mode, only ‘Speaker 1, LEFT’ supports AUX / LINE IN /OPTICAL connections.
It is not necessary to complete the TWS steps above for each use. Once completed during initial setup, the
speakers will automatically connect to each other.
Bluetooth Connection
1. Enable Bluetooth on the device you wish to connect. On your device’s Bluetooth menu, look for ‘uStream One’
and select it to connect. You will hear a voice command ‘Connecting to Bluetooth’
2. You will hear a voice confirmation from the speaker to confirm connection. ‘Bluetooth Connected’
3. You can now enjoy music from your device via any of your music apps and the sound should be in stereo from
both speakers.
Connecting to a Smart Device to use as preferred sound source
You can use the uStream Ones as your preferred Bluetooth speaker with any smart home device such as an Amazon ™ Echo
or Google ™ Home. This means you can use voice control to select what music to playback and listen in full stereo via your
uStream One speakers.
Follow the instructions via your smart devices app on your mobile device or visit www.mitchellacoustics.co.uk for more a
detailed explanation.
Adjusting the volume with remote control handset
Point the remote control at Speaker 1 (Left) and repeatedly press the Volume + button on the remote control
handset. (Do not simple press and hold)
An audible beep will be heard when max volume is reached.
You can now use your device to adjust the volume up and down.
Connecting Other Devices
You may wish to connect other devices to the uStream One such as a TV, an external music player or a
turntable.
There are 3 external auxiliary connections that can be used, but remember, they must be connected to
‘Speaker 1’ in order to hear stereo sound from both speakers simultaneously.
The possible connections are:
1. RCA left and right
2. 3.5mm stereo line in jack
3. Optical TOSLINK
Connection of Analog RCA Audio Cables
Pay attention to the plug colours and the left and right channels when connecting RCA audio cables.
Ensure a good connection by making sure to insert plugs completely. Failure to insert fully can cause noise or
malfunctions.
Correct Connection of Optical TOSLINK Cables
The speakers contain a high quality optical input which works with most televisions via a
standard TOSLINK cable. Make sure your television is set to output digital audio in PCM
format. Refer to the user manual of your television for details. Be careful to match the
shapes correctly on the optical cables.

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6. Initial Set Up
Power Connection
1. UK use there is an adaptor into which the two-pin European cable should be inserted as shown in the
Quickstart Guide. Connect the relevant AC power cable to the supplied AC adaptor.
2. Connect the AC adaptor cable to the back of each device.
3. Connect the AC power cable to the mains supply.
4. Switch the power on via the on/offswitch on the rear of each speaker.
Initial Positioning and Power On
1. The LEFT speaker should be powered on FIRST and will always be Speaker 1.
2. Power on the speakers by pressing on the top panel for 2 seconds.
3. Confirmation voice will be audible. ‘Power on’ with confirmation of mode.
TWS (True Wireless Stereo) Connection
1. Make sure that the speakers do not have an active Bluetooth connection with a device. Turn off
bluetooth on the device you intend to connect to the speakers before pairing the speakers to each
other.
2. Press the “TWS” button on Speaker 1 (Left speaker) to initiate the automatic pairing mode between the
two units. There is a voice confirmation ‘Connecting to Speaker 2’ followed by ‘Speaker 2 connected’.
NB: In True Wireless Stereo mode, only ‘Speaker 1, LEFT’ supports AUX / LINE IN /OPTICAL connections.
It is not necessary to complete the TWS steps above for each use. Once completed during initial setup, the
speakers will automatically connect to each other.
Bluetooth Connection
1. Enable Bluetooth on the device you wish to connect. On your device’s Bluetooth menu, look for ‘uStream One’
and select it to connect. You will hear a voice command ‘Connecting to Bluetooth’
2. You will hear a voice confirmation from the speaker to confirm connection. ‘Bluetooth Connected’
3. You can now enjoy music from your device via any of your music apps and the sound should be in stereo from
both speakers.
Connecting to a Smart Device to use as preferred sound source
You can use the uStream Ones as your preferred Bluetooth speaker with any smart home device such as an Amazon ™ Echo
or Google ™ Home. This means you can use voice control to select what music to playback and listen in full stereo via your
uStream One speakers.
Follow the instructions via your smart devices app on your mobile device or visit www.mitchellacoustics.co.uk for more a
detailed explanation.
Adjusting the volume with remote control handset
Point the remote control at Speaker 1 (Left) and repeatedly press the Volume + button on the remote control
handset. (Do not simple press and hold)
An audible beep will be heard when max volume is reached.
You can now use your device to adjust the volume up and down.
Connecting Other Devices
You may wish to connect other devices to the uStream One such as a TV, an external music player or a
turntable.
There are 3 external auxiliary connections that can be used, but remember, they must be connected to
‘Speaker 1’ in order to hear stereo sound from both speakers simultaneously.
The possible connections are:
1. RCA left and right
2. 3.5mm stereo line in jack
3. Optical TOSLINK
Connection of Analog RCA Audio Cables
Pay attention to the plug colours and the left and right channels when connecting RCA audio cables.
Ensure a good connection by making sure to insert plugs completely. Failure to insert fully can cause noise or
malfunctions.
Correct Connection of Optical TOSLINK Cables
The speakers contain a high quality optical input which works with most televisions via a
standard TOSLINK cable. Make sure your television is set to output digital audio in PCM
format. Refer to the user manual of your television for details. Be careful to match the
shapes correctly on the optical cables.

ENGLISH
ENGLISH
© Mitchell Acoustics Limited UK 2021 uStream One IB Ver 2.0 Rev 1 21 of 11620 of 116
7. Disposal
Disposing of the Packaging
Sort the packaging before you dispose of it. Dispose of paper and cardboard with the recycled paper service
and wrappings with the appropriate collection service.
Disposing of the Speakers
Old appliances may not be disposed of in the household waste!
Should the speakers no longer be capable of being used at some point in time, dispose of them in accordance
with the regulations in force in your city or county. This ensures that old appliances are recycled in a
responsible manner and also rules out negative consequences for the environment.
Disposing of the Battery
Batteries may not be disposed of with household waste!
As the end user you are required by law to bring all batteries, regardless whether they contain harmful
substances* or not, to a collection point run by the communal authority or to a retailer, so that they can be
disposed of in an environmentally friendly manner.
* labeled with: Cd = cadmium, Hg = mercury, Pb = lead
8. Troubleshooting
PROBLEM
POSSIBLE SOLUTION
No power when switched on at rear
Wall socket not switched on or faulty
Plug not fully inserted into wall socket
Fuse in adaptor plug may have blown.
Internal mains fuse has blown inside the
AC adaptor, (this will need to be replaced by a qualified
service technician)
Fuse in household fuse box has blown or circuit has been
tripped.
No sound
Power not turned on.
Volume setting too low.
No input audio equipment is connected or is faulty.
Correct audio input source not selected on top panel.
No sound from one speaker
Audio source input cables connected incorrectly or
damaged.
TWS function not activated
Buzzing or Humming from either
speaker
It is normal with Bluetooth audio for there to be a low level
background noise when very low level audio is being
played, like gaps in classical music.
Audio connection cables are either damaged or not
connected correctly
Remote control not working
Adjust the angle at which the remote control is pointed at
the speaker.
Check if the battery has been inserted correctly.
Battery could be flat, replace to see.
Remove any objects found between the remote control
and the remote sensor.
Make sure the distance between the remote control and
the device does not exceed 5 m
Buttons do not function (on the unit
and/or remote control)
Turn the unit offand then on again.
As an alternative, turn the unit off, unplug it from the
power outlet and plug in again.
I am experiencing dropouts on my
RIGHT Speaker
Devices such as microwaves, cordless phones, Bluetooth,
mouse or Wi-Fi devices connected to 2.4GHz that run on
the same frequency may cause interference and result in
dropouts. Try to remove this type of device from the
vicinity. You can also make use of network analyzer apps
available on the market to check the network and
interference status.