Digitus DA-12221 User manual

Mobile Conference Speaker,
Bluetooth and USB compatible
Quick Installation Guide
DA-12221

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1. Introduction
The DIGITUS® Conference Room Speaker System is designed for
stationary and mobile applications. Transform the room of your
choice into a conference room. The four integrated speakers
ensure an optimal distribution in the room to guarantee clear
voice quality for all participants. The speaker can either be
connected wirelessly with a smartphone or notebook via
Bluetooth or directly via a USB cable connection. The system is
compatible with all conventional communication platforms
(UC), the main functions can also be controlled directly on the
device using the multi-function buttons. The functions include:
On/off, accept call, hang up, reject, mute, fast forward, rewind,
adjust volume and more. Using the TWS function, two
conference speakers can optionally be combined with stereo
speakers. With a battery life of up to 10 hours, you can also
handle longer calls or conferences.
2. Package Content
•1 x Mobile Conference Room Speaker, Bluetooth & USB-
compatible
•1 x USB connection cable (USB A / Micro B)
•1 x Audio connection cable (3.5 mm)
•1 x Bluetooth USB receiver
•1 x QIG
3. Technical Data
•Function buttons: 5
•Functions: On/off, play, pause, raise/lower volume, answer/hang
up/reject/redial
•Mute/unmute, TWS connection (True Wireless Stereo)
•Integrated speaker: 4 pcs.
•Power: 10 W
•Diameter: 40 mm

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•Charging voltage: 5 V DC / 1 A
•Bluetooth version: 5.0
•USB connection: Micro USB
•Aux in: 3.5 mm jack socket (only for playing music)
•Battery capacity: 2500 mAh (lithium ion rechargeable battery)
•Charging time: 2-3 h
•Battery life: ca. 10 h
•Dimensions: W 122.6 x H 60.65 mm
•Weight: 435 g
4. Product Description
(1) Power on / off, Play / Pause
(2) Increase volume / Next song
(3) Decrease volume / Previous song
(4) Answer / End / Reject call, Last dialed number
(5) Mute / Unmute microphones, TWS connection
(6) Micro USB charging input
(7) 3.5 mm jack AUX input
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5
3
4
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5. Technical details and radio emission
Hardware version
V1.0
Firmware version
V004
SRD Frequency
2400 MHz – 2483.5 MHz
Modulation type
8DPSK π/4DQPSK CGSK
RF power
4dBm (Max.)
6. Charging
We recommend that you fully charge the DA-12221 before
using it for the first time to maximize battery life. It takes about
2-3 hours to fully charge. An acoustic signal will indicate a low
battery. To charge the speaker battery, it is recommended DC
5V/1A or higher current charger for charging. The Charging
progress is signaled by a flashing LED below the [  ] button;
when the battery is fully charged, the LED will stay lit. During
charging, the speaker can be used for calls and music playback.
7. Power ON/OFF
To turn the speaker on or off, press and hold the [ ] button
for 2 seconds. Note: To save the power, the speaker turns
off after 20 minutes of inactivity.
8. Connecting to Bluetooth
1) Connect DA-12221 with Bluetooth-enabled devices: After
power on, the [  ] button flashes. Turn on the Bluetooth
function of the mobile phone and select DA-12221 in the
list of available devices After selecting the device, it will
automatically connect. The [  ] button stops flashing after
connected, then you can play music or make a hands-
free call.

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2) For the device without Bluetooth function: After power
on, the [  ] button flashes. Plug Wireless USB Receiver into
the device which in the package. The device will connect
DA-12221 automatically.
3) To disconnect the Bluetooth device, hold down the [  ]
button for 4 seconds.
Note: DA-12221 can connect up to two Bluetooth devices.
9. Disconnect the Bluetooth
1) Open your mobile phone and click DA-12221 in the
connected device to disconnect.
2) Hold down the [  ] button for 2 seconds to disconnect the
Bluetooth, the [  ] button will flash white.
10. AUX Mode
Insert the 3.5mm audio cable in package into the audio jack,
plug another head into your device, use the device to which
you have connected the speaker to control the music being
played. To control the volume of the speaker, you can press
【+【【-【button increase and decrease the volume.
Note: AUX mode cannot be used for hands-free calls.
11. True Wireless Connection
Two identical DA-12221 speaker can be connected to each
other via the TWS function, you can connect them together and
enjoy true wireless stereo.
1) Disconnect the Bluetooth connection on the mobile phone
or device, and make sure that the speaker is not connected
to any device (also remove the audio cable on the AUX IN
jack).
2) Choose one of them as the master (another one as the
slave) First, press the [ ] button of the master, and then

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the two speakers will automatically connect to each other
after 5 seconds. The [ ] button on the Slave speaker display
blue light, indicating that the two speakers are successfully
connected. The master unit [ ] button still flashes, waiting
for the Bluetooth device to connect.
3) Turn on Bluetooth on the phone or device. And start
searching for Bluetooth devices, find "DA-12221" connect it.
If you want to connect a PC or other devices through a
3.5mm audio cable or USB cable, please plug into the
master.
4) After connected to TWS, it will automatically connect when
turned on next time, otherwise you can clear the TWS
connection by pressing the [ ] button.
12. Hands free
After the Bluetooth connection is successful, you can use the
DA-12221 to make a hand-free call at any time. When there is
an incoming call, you can click [  ] button answer the call, and
press [  ] button 2 seconds to reject the call. Double press
[  ] dial back the last call. If you don’t want the opposite side to
hear your voice during a call, you can click [  ] button to turn off
the microphone or click [ ] button again to turn on the
microphone.
Note: The effective range of the microphones for calls is 5
meters.
13. Connecting to a PC using USB
Connect USB cable to your PC and DA-12221, the loudspeaker
will entering USB mode. Open the media player in PC, you can
enjoy your favorite music.
Note: some kinds of media player will not choose DA-12221
USB mode playing automatically, you can choose “DA-12221
USB Audio” in your player then playing the music.
Hands-free call: In USB mode, your DA-12221 can also make
hands-free calls. Open your social APP and select your friends

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to make hands-free calls. Due to the different social APPs have
different operation mode, the [  ] key of DA-12221 may be
invalid. You’ll need to manually operate on the APP to answer
or end the call. If you don’t want the other party to hear you
during a call, you can click the [  ] key to turn off the
microphone or click again to turn on the microphone.
Note: The effective range of the microphones for calls is 5
meters.

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14. Multi-session
After connecting the DA-12221 with a mobile phone or
computer (using Bluetooth or USB data cable connection), it is
recommended to place the DA-12221 in the center so that
everyone can hear clear.
1) The mode 1 for conference: The Bluetooth of mobile phone
connecting with speaker.
2) The mode 2 for conference: The Bluetooth of laptop or
computer connecting with speaker (by Bluetooth adapter).
3) The mode 3 for conference: Connect speaker with laptop or
PC by USB data cable.

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15. Troubleshooting
Q: My speaker will not switch on.
A: Please recharge it and make sure it has enough power. Plug
the unit into a charger and see if the power LED indicator turn
on.
Q: Why can’t I pair this speaker with other Bluetooth devices?
A: Please check the following:
Your Bluetooth device supports the A2DP profile.
The speaker and your device are next to each other (within
10m).
The speaker have connected one Bluetooth devices, if yes, you
can press the button [  ] cleared and pairing new device.
Hereby Assmann Electronic GmbH declares that the Declaration of
Conformity is part of the shipping content. If the Declaration of Conformity is
missing, you can request it by post under the below mentioned
manufacturer address.
www.assmann.com
Assmann Electronic GmbH
Auf dem Schüffel 3
58513 Lüdenscheid
Germany