Sennheiser MX W1 - 06-08 User manual

MX W1
digital wireless system
Instruction manual

1
Contents
Important safety instructions ............................................. 2
MX W1 digital wireless earphone system ......................... 4
Delivery includes .................................................................... 4
Product overview ................................................................... 5
LED indications of the devices ...................................................6
Putting the MX W1 into operation ..................................... 6
Charging the MX W1 ...................................................................6
Associating the earphones to the transmitter (Pairing) .....9
Setting up your MX W1 for usage ......................................... 12
Using the MX W1 .................................................................14
Switching the earphones on/off ............................................ 14
Switching the transmitter on/off .......................................... 15
Putting on the earphones ....................................................... 16
Care and maintenance ........................................................17
Get the most out of your Sennheiser MX W1! ................19
Troubleshooting ...................................................................20
Accessories and spare parts ...............................................22
Specifications ........................................................................23
Manufacturer declarations .................................................24

2
Important safety instructions
The MX W1 has been manufactured according to the accepted rules
of safety and current technology. However, there is still a danger of
damage to equipment if the following general safety instructions
are not complied with.
• Please read these instructions for use carefully and completely
before using the devices.
• Make these instructions for use easily accessible to all users at all
times. Always include these instructions for use when passing
the devices on to third parties.
• Do not use the devices in situations which require special
attention (e.g. in traffic or when performing skilled jobs).
• Always keep the devices dry and do not expose them to extreme
temperatures (normal operating temperatures: 0 °C to 40 °C).
• Use the devices with care and store them in a clean, dust-free
environment.
• Switch off the devices after use to conserve battery power.
Remove the batteries if the earphones will not be used for
extended periods of time.
• Do not listen to high volume levels for long periods of time as
this can lead to permanent hearing defects. Set the volume of
the connected audio device to the minimum before switching
the earphones on. Then increase the volume to the lowest
comfortable volume.
• Use only the Sennheiser supplied MX W1 charging cable and
power supply unit. Never use the power supply unit for purposes
other than stated in this instruction manual.
Intended use of the devices
Appropriate use of the devices includes:
• having read and understood these instructions, especially the
section “Important safety instructions”,
• using the devices within the operating conditions and
limitations described in this instruction manual.

3
Safety instructions for Lithium-Ion rechargeable batteries
If abused or misused, rechargeable batteries may leak. In extreme
cases, they may even present a
Please understand that Sennheiser does not accept liability for
damage arising from abuse or misuse.
•heathazard
•firehazard
• explosion hazard
• smoke and gas hazard
Keep away from
children.
Do not heat above
70°C/158°F, e.g. do
not expose to
sunlight or throw into
a fire.
Do not expose to
moisture.
Do not short-circuit.
Do not mutilate or
dismantle.
Do not get fully
charged but
unpacked
rechargeable
batteries mixed up.
Do not continue to
use defective
rechargeable
batteries.
Only use rechargeable
batteries
recommended by
Sennheiser.
Observe correct polarity.
Switch rechargeable battery-
powered devices off after
use.
Remove rechargeable
batteries when the unit is not
used for extended periods of
time.
Only charge rechargeable
batteries with the
appropriate Sennheiser
chargers.
When not using rechargeable
batteries for extended
periods of time, charge them
regularly (about every three
months).
Only charge rechargeable
batteries at ambient
temperatures between 10°C
and 40°C.
Immediately remove
rechargeable batteries from
obviously defective devices.
Dispose of rechargeable
batteries at special collection
points or return them to your
specialist dealer.

4
MX W1 digital wireless earphone system
Thank you for purchasing MX W1 - Sennheiser's completely
digital wireless earphone system. We trust that you will enjoy
using it and that it will satisfy your expectations.
The MX W1 is simple to operate. These instructions for use have
been designed to help you get started. Please take some time to
read them carefully so as to ensure your utmost listening
pleasure.
Enjoy your new MX W1!
Delivery includes
1 MX W1-T transmitter
2 MX W1-R earphones (left/right) incl.
– earpads (1 pair, foam)
– twist-to-fit pads (3 pairs: size S/M/L)
1 MX W1-C docking station
1 carrying case
1 elastic fabric strap
4 rubber bands (2 x S/2 x L)
1 charging cable with USB plug
1 power supply unit
PSC03R-050
with 4 country adaptors (US/UK/EU/AU)
1 instructions for use

5
Product overview
Earphones
Transmitter
Twist-to-fit pad
Speaker
LED (orange/blue)
Operation/pairing button of
the earphone
2.5 mm charging jack
Battery compartment
Operation/pairing button of
the transmitter
Reset button
LED (orange/blue)
2.5 mm charging jack
Connecting cable with
3.5 mm stereo jack plug
Dowel pin





쐋







6
Docking station
LED indications of the devices
Putting the MX W1 into operation
Charging the MX W1
Charge the rechargeable batteries of all MX W1 devices for
3 hours before first use.
When the battery is almost flat, the LEDs and flash blue or
the LED flashes orange. You then have to charge the device.
Charging compartment for
earphones
Charging plugs for
earphones (inside the
charging compartment)
LED (orange/red)
Charging button
2.5 mm charging jack
LED Description
orange Charging of a device (see following chapter)
Docking station: Battery capacity < 5%
red Charging of the docking station (see following chapter)
blue
Associating the earphones to the transmitter (see page 9)
Switching the devices on/off (see page 14)
Transmitter/earphones: Battery capacity < 5%







1s0 2s

7
Charging the devices
To charge the devices (simultaneously or separately):
왘Connect the charging cable to the power supply unit .
왘Connect the suitable country adaptor to the power supply
unit .
왘Connect the charging cable to the charging jack of:
– the transmitter and the docking station 
– or the earphones .
왘If you want to charge all devices at one go, insert the
earphones into the charging compartments of the
docking station.
왘Press the charging button .
Danger of damage to the USB interface!
The USB interface of your computer can be
damaged if you connect the docking station
using the charging cable . This can lead to an
overload of the USB interface.
왘Only charge the docking station using the
power supply unit .
 




CAUTION!

8
왘Plug the country adaptor into a wall socket.
The batteries are being charged. The corresponding LEDs
light up.
왘Charge the rechargeable batteries until the LEDs go off
(approx. 2 hours).
Note:
– The rechargeable batteries of the transmitter and the
earphones can also be charged via a computer USB socket.
However, to charge the rechargeable battery of the
transmitter while listening to music, use the supplied
power supply unit for charging in order to avoid hum.
– The transmitter has its own built-in rechargeable battery.
So it will not drain your audio device’s battery.
– With a fully charged rechargeable battery, the operating
time of the transmitter is approx. 10 hours and of the
earphones approx. 3 hours.
Charging the earphones on the move
When on the move, the earphones can be charged up to three
times in the docking station, without the docking station having
to be connected to the mains.




쐋

9
왘Insert the earphones into the charging compartments of
the docking station. Make sure that the earphones are
inserted correctly.
왘Press the charging button to start charging.
The rechargeable batteries are being charged. The LEDs 
and light up.
왘Charge the rechargeable batteries until the LEDs go off.
Associating the earphones to the transmitter
(Pairing)
The MX W1 earphones and transmitter are already paired on
delivery. To enable wireless transmission, both the earphones
and the transmitter have to recognize each other:
1. Enrollment mode
After switch-on, a suitable device is searched.
2. Association mode
If a suitable device is detected, both devices will exchange
device identification information.
1s0 2s
1s0 2s

10
Associating a second pair of earphones to the transmitter
With one transmitter you can associate up to two pairs of
earphones. If you want to use another pair of earphones, you
have to pair your transmitter and the new earphones:
3. Pairing mode
If the exchange of device identification information is possible,
the devices automatically try to connect.
왘Switch the new earphones off (see page 14).
왘Switch the transmitter and the already paired earphones on
(see page 14).
왘Switch the transmitter off (see page 14).
5s0 10s
ON ON OFF
4s
ON OFF OFF

11
왘Press and hold the operation/pairing button of the new
earphones until the LEDs flash rapidly.
왘Press and hold the operation/pairing button of the trans-
mitter until the LED flashes rapidly.
After approx. 3 seconds, the new earphones are paired to
the transmitter. The LEDs flash blue once every 5 seconds.
왘Press and hold the operation/pairing button of the
transmitter again for approx. 1 second.
After approx. 3 seconds, the old earphones are also paired to
the transmitter. The LEDs flash blue once every 5 seconds.
7s
ON OFF ON
ON ON ON
7s
ON ON ON
ON ON ON

12
Note:
The distance between transmitter and earphones should not
exceed 1 m during association.
Note on cancelling/re-establishing associations:
When you press the operation/pairing button of the
transmitter, one of the two pairs of earphones is
disconnected from the transmitter. To re-connect this pair of
earphones, briefly press the operation/pairing button of
the transmitter again.
Associating the earphones to Kleer compatible devices
MX W1 is fully compatible to Kleer wireless standard. For pairing
the MX W1 with other Kleer compatible devices, please refer to
the preceding chapter and to the user manual of your device in
question.
Setting up your MX W1 for usage
Fixing the transmitter to your audio device
Fix the transmitter with the help of:
•thefabricstrap
• or one of the rubber bands (see illustration).

13
Connecting the transmitter to your audio device
Adjusting the earphones to your ears
Sennheiser’s twist-to-fit system and comfortable earpads allow
for the best custom fit enabling you to enjoy seamless high
fidelity stereo sound. The perceived sound quality of the
earphones depends to a large extent on a correct fit. For best
sound enjoyment, please use the supplied earpads and twist-to-
fit pads.
If the pre-mounted twist-to-fit pads (size M) do not fit your ear,
use the smaller or larger ones.
You can connect the transmitter to an
MP3 player or any audio device with a 3.5 mm
stereo headphone socket:
왘Connect the stereo plug of the transmitter 
to the 3.5 mm stereo headphone socket of
your audio device.
왘Carefully remove the twist-to-fit
pads from the earphones.
왘Mount the new twist-to-fit
pads to the earphones.
왘Pull the earpads over the
speakers.


SML

14
Using the MX W1
To switch the system on, proceed as follows:
1. Switch your audio device on.
2. Switch the earphones on (see following chapter).
3. Switch the transmitter on (see page 15).
4. Put the earphones on (see page 16).
You will hear the sound from your sound source.
Switching the earphones on/off
To switch the earphones off:
왘Press and hold the operation/pairing button until the
LEDs light up blue.
The earphones switch off.
To switch the earphones on:
왘Remove the earphones from the docking
station
or:
왘Press and hold the earphones’
operation/pairing button  until the
LEDs flash blue.
The earphones switch on.

쐋
0 4s
4s0
8

15
Note:
– When you insert the earphones into the docking station,
the earphones automatically switch off.
– If there is no transmitter in enrollment mode for at least
5 minutes, the earphones automatically switch off.
Switching the transmitter on/off
To switch the transmitter off:
왘Press and hold the operation/pairing button until the
LED lights up blue.
The transmitter switches off.
Note:
– The transmitter remains switched on during charging. To
switch the transmitter off, press and hold the operation/
pairing button for 4 seconds.
– If there are no earphones in enrollment mode for at least
5 minutes, the transmitter automatically switches off.
To switch the transmitter on:
왘Press and hold the transmitter’s
operation/pairing button until the
LED flashes blue.
The tranmitter switches on.


0 4s
4s0
8

16
Putting on the earphones
왘Check the R(right) an L(left) marks on the earphones to
identify them and put on the earphones as shown in the
illustration above.
Danger of hearing damage!
Listening at high volume levels for long periods
can lead to permanent hearing defects.
Sennheiser earphones also sound exceptionally
good at low volumes.
왘Set the volume of the audio device to the
minimum before switching the earphones
on.
CAUTION!

17
Care and maintenance
Cleaning the devices
For reasons of hygiene, clean your Sennheiser products
regularly.
왘Before cleaning, disconnect the devices from the mains.
왘Only use a slightly damp cloth to clean the devices.
Changing the twist-to-fit pads/earpads/rubber rings
For reasons of hygiene, the twist-to-fit pads, earpads and
rubber rings should be replaced from time to time. Please order
these spare parts from your Sennheiser dealer.
Liquids can damage the electronics of the
devices!
Liquids entering the housing of the devices can
cause a short-circuit and damage the electronics.
왘Keep all liquids away from the devices.
왘Do not use any cleansing agents or solvents.
왘Carefully remove the twist-to-fit
pads /rubberrings/
earpads from the earphones.
왘Mount the new twist-to-fit
pads /rubber rings to the
earphones.
왘Pull the earpads over the
speakers.
CAUTION!



18
Replacing the earphones’ rechargeable batteries
왘Slightly lift the end of the caps and slide the caps out of the
guide rails.
왘Insert the new rechargeable batteries as shown. Observe
correct polarity when inserting the batteries.
왘Replace the caps and slide them onto the guide rails until
it clicks audibly.
왘Charge the earphones until the corresponding LEDs go off
(see page 8).
Note:
The battery caps are designed to fit tightly into the
earphones in order to avoid losing the battery and cap should
the earphones fall off. Do not open the battery caps unless
the battery needs to be replaced.
Danger of damage to the devices!
Rechargeable button cells from other manufac-
turers may cause damage to the earphones and
will invalidate the warranty.
왘Only use rechargeable button cells recom-
mended by Sennheiser (see page 22).
CAUTION!

19
Get the most out of your Sennheiser
MX W1!
Your Sennheiser MX W1 uses the latest digital wireless
transmission technology. This technology offers high
transmission quality and reliability but, like other wireless
technologies, can also be influenced by various factors such as:
• objects or walls, as these can reflect (amplify) or attenuate
the transmitted signal.
• the position of the transmitter on your body: optimally, the
distance to both earphones should be the same.
• other wireless devices operating on similar frequencies
(around 2.4 GHz) within your immediate vicinity.
In order to optimise the transmission quality of your
MX W1, please make sure to:
• attach the transmitter at the centre of your chest
or back,
• observe a minimum distance of 5 mm between
your body and the transmitter,
• place the audio device between the transmitter
and your body.