Sennheiser Electronic M2AEBT User Manual

MOMENTUM Wireless

M2 AEBT

Instruction Manual

2 | M2 AEBT

Contents

Contents

Important safety instructions ...................................................................................2

The MOMENTUM Wireless (M2 AEBT)
Package includes
Product overview

Overview of the headphones .................................................................................... 7

Overview of pictograms ............................................................................................. 7

Overview of LED indicators ........................................................................................ 9

Overview of buttons .................................................................................................10

Getting started

Charging basics ..........................................................................................................11

Pairing the headphones ...........................................................................................13

Adjusting the headband ..........................................................................................16

Using the headphones

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

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

Clearing the paired settings ....................................................................................29

Specifications
Manufacturer declarations

..........................................................................................................6

.........................................................................................................7

......................................................................................................... 11

............................................................................................. 17

.......................................................................................... 25

........................................................................................................ 28

............................................................................................................ 30

...................................................................................... 31

.......................................................................4

M2 AEBT | 1

Important safety instructions

Important safety instructions

X Read the instruction manual, safety guide, quick guide (as supplied) carefully

and completely before using the product.

X Always include this safety guide when passing the product on to third parties.
X Do not use an obviously defective product.

Preventing damage to health and accidents

X Protect 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 me­dium volume levels.

X Keep 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.

X Keep the product and its accessories away from small children and pets. The

product contains small parts which may cause choking hazards to small chil­dren and pets.

X Do 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

X Always 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.

X Use only attachments/accessories/spare parts supplied or recommended by

Sennheiser.

X Clean the non-leather parts of the product only with a soft, dry cloth.
X Use only the product in environments where Bluetooth® wireless transmis-

sion is permitted.

X Do not wear the headphones during charging because the built-in recharge-

able battery can get warm.

X Use the product with care and store it in a clean, dust-free environment.
X Do not operate the product near heat sources.

Caring for leather parts

X Gently wipe leather parts periodically with a clean, soft cloth dampened with

water.

X Do not use leather polish, detergents or harsh soaps to clean leather parts.
X Avoid storing the headphones in a damp or humid environment.

2 | M2 AEBT

Important safety instructions

Intended use/Liability

This wireless headphones are designed for use with mobile devices (e. g. mo­bile 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 Pro­file (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,

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.

• heat generation or

• smoke or gas development.

M2 AEBT | 3

The MOMENTUM Wireless (M2 AEBT)

The MOMENTUM Wireless (M2 AEBT)

Proudly leading the way into the next generation of Sennheiser’s highly re­garded MOMENTUM line, the M2 AEBT brings you freedom of movement and
total purity of sound. Bluetooth® wireless technology makes a cable unneces­sary, 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.

4 | M2 AEBT

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 ena­bles 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 micro­phones 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.

M2 AEBT | 5

Package includes

Package includes

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MOMENTUM

Headphones

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

Safety guide

Quick start 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“.

6 | M2 AEBT

Product overview

Product overview

Overview of the headphones

1

6
7

8

5

4

2

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MOMENTUM

3

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

9

0

Pictograms for using buttons

Pictogram Meaning

1 x

2 x

5s

Press and immediately release the button

Press the button twice

Press the button and hold for 5 seconds

M2 AEBT | 7

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

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.

8 | M2 AEBT

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

2s

2s

Headphones are in pairing mode

Headphones are disconnected from the device

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

1s

Incoming call

Incoming call with an almost empty battery

M2 AEBT | 9

Product overview

Overview of buttons

Power button

Press Function Page

Switches the headphones on and off 17

2s

3-way multifunction button

Press Function Page

1x

Accepts/ends a call

Accepts an incoming call and ends the active call

21

21

3 x

2 x

1s

2x

3x

Plays/pauses a song

Rejects a call

Activates the voice control

Transfers a call

Plays the next song

Accepts an incoming call and puts the active call on

20

21

23

22

20

21

hold/Toggles between 2 calls

Checks the battery life

Plays the previous song

19

20

Rewinds a song 20

+

HOLD

Fast-forwards a song 20

+

HOLD

10 | M2 AEBT

Getting started

5m

3h

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 condi­tion 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%)

Battery is less than 15% charged „Below 3 hours play time"

„Recharge headset“

„Power off"

Battery is less than 25% charged

Battery is less than 50% charged

Battery is less than 80% charged

Battery is more than 80% charged

Battery is fully charged

„Between 3 and

5 hours play time"

„Between 5 and

11 hours play time"

„Between 11 and

18 hours play time“

„Between 18 and

22 hours play time“

„Between 18 and

22 hours play time"

M2 AEBT | 11

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 head­phones, as provided in the table above.

1

L

2

MOMENTUM

*

*

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Accessories not included.

*

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.

MOMENTUM

12 | M2 AEBT

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.

X Make 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 fol­lowing profiles:

X Hands Free Profile (HFP)
X Headset Profile (HSP)
X Audio/Video Remote Control Profile (AVRCP)
X Advanced Audio Distribution Profile (A2DP)
X Device 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 re­establish 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.

paired +
connected

MOMENTUM

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MOMENTUM

L

paired

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 instruc­tions provided do not work on your smartphone, please proceed as described in
the instruction manual of your device.

M2 AEBT | 13

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.

1

Menu

NFC on

NFC o

› power on ‹
› pairing ‹

AUTO-ON

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MOMENTUM

1s 1s

2

Left

< 3 cm

3

Pair to the Bluetooth device?

Yes

No

› connected ‹

L

MOMENTUM

14 | M2 AEBT

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.

MOMENTUM

› power on ‹
› pairing ‹

1

L

1s

2

Menu

Bluetooth on

Bluetooth o

20 cm

3

4s

4

MOMENTUM M2 AEBT

Menu

Add device

MOMENTUM M2 AEBT

Keyword: 0000

› connected ‹

› connected ‹

MOMENTUM

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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.

M2 AEBT | 15

Getting started

MOMENTUM

Disconnecting the headphones from an NFC or Bluetooth device

X Disable 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 pre­viously paired devices. If no device is found, you hear the voice prompt „no
device found” after few minutes.

› disconnected ‹

Menu
Bluetooth on

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MOMENTUM

Bluetooth o

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.

X Wear the headphones so that the headband runs over the top of your head.
X Adjust 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.

MOMENTUM

16 | M2 AEBT

Right side