Sennheiser Momentum Wireless M2 AEBT User manual

MOMENTUM Wireless
M2 AEBT
Instruction Manual

2 | M2 AEBT

M2 AEBT | 1
Contents
Contents
Important safety instructions ...................................................................................2
The MOMENTUM Wireless (M2 AEBT).......................................................................4
Package includes..........................................................................................................6
Product overview.........................................................................................................7
Overview of the headphones .................................................................................... 7
Overview of pictograms ............................................................................................. 7
Overview of LED indicators........................................................................................ 9
Overview of buttons .................................................................................................10
Getting started ......................................................................................................... 11
Charging basics..........................................................................................................11
Pairing the headphones ...........................................................................................13
Adjusting the headband ..........................................................................................16
Using the headphones ............................................................................................. 17
Switching the headphones on ................................................................................17
Switching the headphones off................................................................................17
Adjusting the volume...............................................................................................18
Checking the remaining battery life......................................................................19
Music functions..........................................................................................................20
Call functions .............................................................................................................21
Voice control functions.............................................................................................23
Using the audio cable ..............................................................................................24
Caring and maintenance.......................................................................................... 25
Replacing the earpads..............................................................................................25
Caring for leather parts............................................................................................25
Storing and handling................................................................................................26
Updating the software using the Sennheiser Updater ......................................26
Replacing/removing the rechargeable battery...................................................27
Troubleshooting........................................................................................................ 28
Clearing the paired settings ....................................................................................29
Specifications ............................................................................................................ 30
Manufacturer declarations...................................................................................... 31

2 | M2 AEBT
Important safety instructions
Important safety instructions
XRead the instruction manual, safety guide, quick guide (as supplied) carefully
and completely before using the product.
XAlways include this safety guide when passing the product on to third parties.
XDo not use an obviously defective product.
Preventing damage to health and accidents
XProtect your hearing from high volume levels. Permanent hearing damage
may occur when headphones are used at high volume levels for long periods
of time. Sennheiser headphones sound exceptionally good at low and me-
dium volume levels.
XKeep the headphones at least 10 cm/3.94” from cardiac pacemaker or im-
planted defibrillator. The headphones contain magnets that generate a
magnetic field which could cause interference with cardiac pacemaker and
implanted defibrillator.
XKeep the product and its accessories away from small children and pets. The
product contains small parts which may cause choking hazards to small chil-
dren and pets.
XDo not use the product in situations which require special attention (for ex-
ample, in traffic or when performing skilled jobs).
Preventing damage to the product and malfunctions
XAlways keep the product dry and do not expose it to extreme temperatures
to avoid corrosion or deformation. The normal operating temperature is from
0 to 40°C/32 to 104°F.
XUse only attachments/accessories/spare parts supplied or recommended by
Sennheiser.
XClean the non-leather parts of the product only with a soft, dry cloth.
XUse only the product in environments where Bluetooth® wireless transmis-
sion is permitted.
XDo not wear the headphones during charging because the built-in recharge-
able battery can get warm.
XUse the product with care and store it in a clean, dust-free environment.
XDo not operate the product near heat sources.
Caring for leather parts
XGently wipe leather parts periodically with a clean, soft cloth dampened with
water.
XDo not use leather polish, detergents or harsh soaps to clean leather parts.
XAvoid storing the headphones in a damp or humid environment.

M2 AEBT | 3
Important safety instructions
Intended use/Liability
This wireless headphones are designed for use with mobile devices (e. g. mo-
bile music players, mobile phones, tablets, computers) that support wireless
communication via Bluetooth. Compatible Bluetooth devices include those that
support the following profiles: Hands Free Profile (HFP), Headset Profile (HSP),
Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Pro-
file (AVRCP), and Device ID profile (DIP).
It is considered improper use when this product is used for any application not
named in the associated instruction manuals and product guides.
Sennheiser does not accept liability for damage arising from abuse or misuse of
this product and its attachments/accessories.
Safety instructions for the Lithium-Polymer battery pack
WARNING
In extreme cases, abuse or misuse of Lithium-Polymer battery pack can lead to:
• explosion,
• fire development,
• heat generation or
• smoke or gas development.
Dispose of products with built-in rechargeable batteries at
special collection points or return them to your specialist
dealer.
Use only rechargeable batteries and chargers recommended
by Sennheiser.
Charge products with built-in rechargeable batteries at
ambient temperatures between 10 and 40°C (+/-5°C) / 50
and 104°F (+/-41°F).
Switch battery-powered products off after use.
When not using the product for an extended period of time,
charge them regularly (about every 3 months).
Do not expose to heat above 70°C/158°F, e.g. do not expose
to sunlight or throw into fire.
Do not charge products with built-in rechargeable batteries
if the product is obviously defective.

4 | M2 AEBT
The MOMENTUM Wireless (M2 AEBT)
The MOMENTUM Wireless (M2 AEBT)
Proudly leading the way into the next generation of Sennheiser’s highly re-
garded MOMENTUM line, the M2 AEBT brings you freedom of movement and
total purity of sound. Bluetooth® wireless technology makes a cable unneces-
sary, and thanks to Sennheiser’s innovative NoiseGard™ hybrid active noise
cancellation technology, you’ll be able to enjoy your favorite music on the go in
amazing clarity. Two pairs of internal and external microphones work together
to virtually eliminate ambient noise at both high and low frequencies.
A technological masterpiece in a stunning package, the M2 AEBT sports an
elegant stainless steel construction and luxurious leather padding of the highest
quality, fully in keeping with the exacting aesthetic principles of the MOMENTUM
line while the foldable headband and spacious ear cups add a new level of
comfort and convenience to your listening experience. Sennheiser’s M2AEBT – a
modern classic.
Features
• Closed circumaural design featuring Bluetooth® wireless technology
• Luxurious leather headband and earpads for a feeling of substance and
quality
• Amazing stereo sound across the audible range thanks to Sennheiser’s 18Ω
high-end transducers
• Robust, foldable headband for easy storage on the go
• NoiseGard™ hybrid active noise cancellation for optimum isolation from
background noise and outstanding audio performance
• Immediate pairing to smart devices using NFC
• VoiceMax™ technology utilizing two built-in microphones for voice communi-
cation to emphasize speech quality and remove external noise
• 22 hours of battery life span with both Bluetooth® and NoiseGard™ activated
• Comes with an attachable audio cable for use in environments where
Bluetooth® connectivity is not permitted.

M2 AEBT | 5
The MOMENTUM Wireless (M2 AEBT)
Bluetooth
The MOMENTUM Wireless (M2 AEBT) headphones comply with the Bluetooth
technology 4.0 standard and are compatible with all Bluetooth 1.1, 1.2, 2.0, 2.1,
and 4.0 devices with the following profiles:
• Headset Profile (HSP) 1.2 - The profile that provides the basic functionalities
used by the headphones to interact with a Bluetooth smartphone.
• Hands-Free Profile (HFP) 1.6 - A profile used by the headphones to interact
with a Bluetooth smartphone. This profile provides extra functionalities as
compared to the HSP. If a function, such as voice control, is not supported by
the HSP profile, the HFP takes place.
• Audio/Video Remote Control Profile (AVRCP) 1.5 - The profile used to control
music on the Bluetooth device from the headphones (Play, pause, skip music
track, etc.).
• Advanced Audio Distribution Profile (A2DP) 1.3, supporting aptX® - The
profile used by a Bluetooth device to stream high-quality stereo music to the
headphones.
• Device ID Profile (DIP) 1.3 - The profile used by the headphones to be
identified, such as by its manufacturer, product ID, product version, etc.
NFC
Near Field Communication (NFC) is a short-range wireless technology that ena-
bles connection and communication between NFC-capable electronic devices by
placing them near one another or with a single touch.
VoiceMax
VoiceMax™ dual microphone technology filters away the background noise. 2
microphones work in synergy; one to emphasize your voice, and the other to
remove the ambient noise.
NoiseGard
The NoiseGard™ hybrid Active Noise Cancellation system is a combination of 2
noise-cancellation systems composed of a total of 4 microphones. Two micro-
phones with openings to the outside of the headphones work as a Feed-Forward
active noise cancellation system that reduces noise at the high frequency band,
while the other two microphones inside the headphones work as a Feed-Back
active noise cancellation system that reduces noise at the low frequencies. The
combination of these 2 microphone systems results in a broad reduction in noise
covering a wider band of frequencies.
aptX®
With aptX® audio coding, you can be assured of crisp, pure and full stereo
sound. It allows you to not only hear, but experience and feel the audio as it was
intended. Utilizing aptX®, Bluetooth technology can now offer wireless audio
quality that is indistinguishable from the highest quality wired connection.

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Package includes
Package includes
MOMENTUM
LHeadphones
Hard carry case
Soft carry case
Audio cable with 2.5-mm and 3.5-mm jack
USB cable with micro USB connector
In-flight adapter
Quick guide Quick start guide
Safety guide Safety guide
A list of accessories can be found at www.sennheiser.com. For information,
contact your local Sennheiser partner: www.sennheiser.com> “Sales
Partner“.

M2 AEBT | 7
Product overview
Product overview
Overview of the headphones
1 Headband 6 LED indicator
2 Earpads 7 Power button
3 Earcups 8 3-way multifunction button
4 Microphone 9 Audio input
5 NFC Antenna 0 Micro USB input
Overview of pictograms
Pictograms for using buttons
Pictogram Meaning
1 x Press and immediately release the button
2 x Press the button twice
5s Press the button and hold for 5 seconds
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5
1
2
3
4
6
0
9
8
7

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Product overview
Pictograms for LED indicators
Pictogram Meaning
LED shines
Time interval or interruption. Causes LED to flash
Continuous shine/flash
3s 3s Time interval of flashing
Examples of pictographs used in this manual:
Pictogram Meaning
5m
The LED continuously flashes on and off
3s The LED continuously flashes once every 3 seconds
The LED continuously shines
1s The LED flashes thrice per second.
The icon with „i“
Notes marked with the pictogram “i” provide useful information on the
use of the headphones.

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Product overview
Overview of LED indicators
LED indicators when operating
Indicator Meaning
Headphones are switching on
Pairing with a device is successful
Headphones are switching off
1s Headphones are in pairing mode
2s Headphones are disconnected from the device
2s
Headphones, with an almost empty battery, are
disconnected from the device
Pair settings on the headphones are cleared
LED indicators when making a call
Indicator Meaning
1s Incoming call
1s Incoming call with an almost empty battery

10 | M2 AEBT
Product overview
Overview of buttons
Power button
Press Function Page
2s
Switches the headphones on and off 17
3-way multifunction button
Press Function Page
1x
Accepts/ends a call
Accepts an incoming call and ends the active call
Plays/pauses a song
21
21
20
1s
Rejects a call
Activates the voice control
Transfers a call
21
23
22
2x
Plays the next song
Accepts an incoming call and puts the active call on
hold/Toggles between 2 calls
20
21
3x
Checks the battery life
Plays the previous song
19
20
3 x +HOLD
Rewinds a song 20
2 x +HOLD
Fast-forwards a song 20

M2 AEBT | 11
Getting started
Getting started
Charging basics
A complete charging cycle takes about 3 hours. Before using the headphones
for the first time, charge the headphones for a complete charging cycle without
interruption.
When the battery is almost empty or when you are charging the headphones,
the LED emits a signal and a voice message prompts you of the charge condi-
tion of the battery. When the battery life drops to a low level, a voice message
prompts you to recharge the headphones to avoid call and music disruptions.
It is recommended to charge the headphones using only the supplied USB cable
and a USB power adaptor with a rated output of 500 mA or higher.
LED Meaning Voice prompt
Battery is almost empty
(less than 2%)
„Recharge headset“
„Power off"
Battery is less than 15% charged „Below 3 hours play time"
Battery is less than 25% charged „Between 3 and
5 hours play time"
Battery is less than 50% charged „Between 5 and
11 hours play time"
Battery is less than 80% charged „Between 11 and
18 hours play time“
Battery is more than 80% charged „Between 18 and
22 hours play time“
5m
Battery is fully charged „Between 18 and
22 hours play time"
3h

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Getting started
Charging the headphones
1. Connect the micro USB plug of the charging cable to the micro USB input of
your headphones.
2. Connect the USB plug to a power adaptor (not included) or to the USB car
charger adaptor (not included), and connect to the power source. If you are
using a computer, connect the USB plug to the USB port.
The LED flashes/shines depending on the battery condition of the head-
phones, as provided in the table above.
12
*
*
*Accessories not included.
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When you connect the headphones to a computer using the USB cable, it
will automatically switch off. Switch the headphones on, see page 17,
to continue to listen to music or make calls from your smartphone via
Bluetooth wireless connection.
You can also use the cable to listen to a media player on your computer.
If you are connecting to a computer for the first time, you may need to
set your M2 AEBT headphones as the default speaker from the Sound
control panel of your computer.

M2 AEBT | 13
Getting started
Pairing the headphones
CAUTION
Danger of malfunction!
The transmitted radio waves of mobile phones can impair the
operation of sensitive and unprotected devices.
XMake calls on the headphones only in locations where Bluetooth
wireless transmission is permitted.
To pair your headphones with a Bluetooth device you can either use the Near
Field Communication (NFC) or the Bluetooth search function. To connect the
headphones, Bluetooth needs to be activated in both cases of pairing.
The M2 AEBT headphones comply with the Bluetooth 4.0 standard. In order for
the data to be transmitted wirelessly using Bluetooth technology, you need to
pair your headphones to compatible Bluetooth devices that support the fol-
lowing profiles:
XHands Free Profile (HFP)
XHeadset Profile (HSP)
XAudio/Video Remote Control Profile (AVRCP)
XAdvanced Audio Distribution Profile (A2DP)
XDevice ID Profile (DIP)
When you switch the headphones on, it automatically tries to connect to the
last two connected Bluetooth devices. The headphones can save the connection
profiles of up to eight Bluetooth devices with which it had been paired.
If you pair the headphones to a ninth Bluetooth device, the saved connection
profile of the least used Bluetooth device will be overwritten. If you want to re-
establish a connection with the overwritten Bluetooth device, you have to pair
it back to the headphones again.
You can easily pair and connect your wireless headphones to your smartphone if
the device supports the Near Field Communication (NFC) technology.
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paired
paired +
connected
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The following sections describe, using a smartphone as an example, how to
pair your M2 AEBT headphones to an NFC or Bluetooth device. If the instruc-
tions provided do not work on your smartphone, please proceed as described in
the instruction manual of your device.

14 | M2 AEBT
Getting started
Pairing the headphones to an NFC device
1. Switch the NFC function on from your smartphone.
2. Place your smartphone close, about less than 3 cm, to the NFC antenna on the
left earcup of the headphones.
You hear the voice prompts „power on” and „pairing” and the LED flashes
blue and red.
3. Depending on your smartphone, click „Yes” if a verification to pair to the
headphones appears on the screen.
If the pairing is successful, you hear the voice prompt „connected” and the
LED switches off.
MOMENTUM
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1
Menu
NFC on
NFC o
2
3
Pair to the Bluetooth device?
Yes
No
AUTO-ON
1s 1s
› connected ‹
› power on ‹
› pairing ‹
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Left
< 3 cm

M2 AEBT | 15
Getting started
Pairing the headphones to a Bluetooth device
Ensure that your headphones are within the 20 cm range of your smartphone
during this procedure.
1. Switch the headphones on (see page 17). Continuously press the power
button until you hear the voice prompt „pairing” and the LED flashes blue
and red.
The headphones are in pairing mode.
2. Enable the Bluetooth visibility from your smartphone.
3. From your smartphone, search for Bluetooth devices.
All active Bluetooth devices in the proximity of your smartphone are
displayed.
4. From the list of Bluetooth devices that appears, select „MOMENTUM M2
AEBT” to establish a Bluetooth connection to the headphones. If necessary,
enter the default PIN code “0000”.
If the pairing is successful, you hear the voice prompt „connected” and the
LED switches off.
12
34
20 cm
Menu
Bluetooth on
Bluetooth o
Menu
Add device
MOMENTUM M2 AEBT
Keyword: 0000
› connected ‹
MOMENTUM M2 AEBT
› power on ‹
› pairing ‹
› connected ‹
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4s
1s
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If no connection is established within 5 minutes, the pairing mode breaks
down completely and the headphones go to the disconnected state. Switch
the headphones off and repeat the pairing procedure.

16 | M2 AEBT
Getting started
Disconnecting the headphones from an NFC or Bluetooth device
XDisable the Bluetooth visibility from your smartphone.
The headphones are disconnected from the smartphone, and you hear the
voice prompt „disconnected”. The headphones then searches for other pre-
viously paired devices. If no device is found, you hear the voice prompt „no
device found” after few minutes.
› disconnected ‹
Menu
Bluetooth on
Bluetooth o
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Adjusting the headband
For good sound quality and best possible wearing comfort, you can adjust the
earpad location on the headband to properly match the size of your head. The
earcups feature a locking mechanism that you can easily slide up and down
through the headband slider.
XWear the headphones so that the headband runs over the top of your head.
XAdjust the location of the earpads by moving the earcups up and down of the
headband slider until:
– your ears are comfortably covered by the earpads,
– you feel even, gentle pressure around your ears,
– a snug fit of the headband on the head is ensured.
Right side
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