Sennheiser Momentum 3 Wireless Noise Cancelling Headphones User Manual

Sennheiser Momentum 3 Wireless Noise Cancelling Headphones

About Sennheiser

Sennheiser is a well-known and respected audio company that specializes in the design and production of a wide range of audio products, including headphones, microphones, wireless systems, and professional audio solutions. The company was founded in 1945 by Fritz Sennheiser and is headquartered in Wedemark, Germany.

Sennheiser has a strong reputation for producing high-quality audio equipment that caters to both consumer and professional markets. Their headphones are particularly renowned for their sound quality, durability, and comfort. Sennheiser offers a diverse range of headphone models, including over-ear, on-ear, and in-ear headphones, catering to various preferences and use cases.

Important safety instructions

• Read this instruction manual carefully and completely before using the product.
• Always include this instruction manual when passing the product on to third parties.
• Do not use the product if it is obviously defective or makes loud, unusual (whistling or beeping) noise.
• Only use the product in environments where Bluetooth wireless transmission is permitted.

Preventing damage to health and accidents

• 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.
• The product generates stronger permanent magnetic fields that could cause interference with cardiac pacemakers, implanted defibrillators (ICDs) and other implants. Always maintain a distance of at least 3.94″/10 cm between the product component containing the magnet and the cardiac pacemaker, implanted defibrillator, or another implant.
• Keep the product, accessories and packaging parts out of reach of children and pets to prevent accidents. Swallowing and choking hazards.
• Do not use the product in an environment that requires your special attention (e.g. in traffic or when performing skilled jobs).
  Especially the product’s active noise cancellation can make ambient noise inaudible or drastically change the perception of acoustic warning signals.

Preventing damage to the product and malfunctions

• Always keep the product dry and do not expose it to extreme temperatures (hairdryer, heater, extended exposure to sunlight, etc.) to avoid corrosion or deformation. The normal operating temperature is from 0 °C to 40 °C/32 °F to 104 °F.
• To avoid loud, unusual (whistling or beeping) noise and to ensure proper noise cancellation, do not cover the microphone openings of the active noise cancellation circuitry located on the outside of the ear cups.
• Use only attachments/accessories/spare parts supplied or recommended by Sennheiser.
• Clean the non-leather parts of the product only with a soft, dry cloth.

Caring for leather parts

• Gently wipe leather parts periodically with a clean, soft cloth dampened with water.
• Do not use leather polish, detergents or harsh soaps to clean leather parts.
• Do not store the headphones in a damp or humid environment.

Package contents

• MOMENTUM Wireless M3AEBTXL around-ear headphones
• USB cable with USB-C connectors, length approx. 1.2 m
• USB adapter USB-C to USB-A connector
• Analog audio cable with 3.5 mm jack plug, length approx. 1.4 m
• Carry case
• Quick guide
• Safety guide

Product Overview

1. Sheepskin headband
2. LED
3. Active noise cancellation (ANC) switch On/off, Transparent Hearing mode
4. NFC antenna
5. Volume + button (volume up)
6. Multi-function button for music and call functions
7. Volume – button (volume down)
8. External microphones for active noise cancellation ANC
9. Voice assistant button; pressing for 5 seconds activates the Bluetooth pairing mode
10. Input for USB-C; for charging and music playback/data connection
11. Input for analog audio cable; when a cable is connected, flight mode is activated/Bluetooth is deactivated
12. Ear cups (steplessly adjustable) with internal microphones for active noise cancellation ANC
13. Sheepskin ear pads
14. Ear cup joint with an on/off function for the headphones
15. Microphones for phone calls

Notes on voice prompts

The headphones output voice prompts for various functions (see examples below). Using the Smart Control app, you can change the language of the voice prompts, choose between voice prompts and beep sounds, or deactivate the status messages with a few exceptions (e.g. rechargeable battery is empty).

Voice prompt	Meaning/headphones
“Power on”	switched on
“Power off”	switched off
“Device (1) (2) connected”	are connected to device 1 or 2
“No connection”	not connected via Bluetooth
“Pairing”	are in Bluetooth pairing mode
“Pairing successful”	Bluetooth pairing successful
“No device found”	cannot connect to a paired device
“Volume min”	volume set to minimum
“Volume max”	volume set to maximum
“Call rejected”	incoming call rejected
“Call ended”	call ended
“Mute on”	Microphone is muted, active call is put on hold
“Mute off”	Microphone is reactivated
“More than xx % battery left”	Rechargeable battery has the stated charge level
“Recharge headset”	Rechargeable battery is empty. Recharge the headphones.

Notes on vibration prompts

The headphones output vibration prompts for the following functions.

Event	Comment
Incoming call	Headphones vibrate only when not put on.
Locating the headphones using the TILE app	Using the TILE app you can make the registered MOMENTUM 3 vibrate to locate it when it is nearby (> 28).

Using the headphones

information on the rechargeable battery and the charging process

The headphones have a built-in rechargeable battery. A complete charging cycle takes approx. 3 hours. The headphones provide 1.5 hours of playback time with a charging time of approx. 10 minutes. Before using the headphones for the first time, charge the rechargeable battery for a complete charging cycle without interruption.
When the headphones are being charged, the LED lights up (> 7). When the battery charge drops to a critical level, a voice prompt asks you to recharge the headphones (“Recharge headset”).

Sennheiser recommends charging the headphones using the supplied USB-C cable and a compatible standard USB-C power supply
unit.

While the headphones are being charged, you can still listen to music or make phone calls. In this case, however, the charging time may be longer.

Information on the Bluetooth wireless connection The headphones are compatible with Bluetooth 5.0. If your audio source supports one of the following high-resolution audio encoding methods, music is automatically played in high audio.

quality: aptX, aptX LL, or AAC. Otherwise, the headphones will play your music in normal audio quality (SBC).

Paired devices establish the Bluetooth wireless connection immediately after switch-on and are ready for use. On switch-on, the headphones automatically try to connect to the last two connected Bluetooth devices. The headphones can save the connection profiles of up to eight Bluetooth devices with which they have been paired.

Setting the voice prompts/beep sounds

To be able to set the voice prompts and beep sounds, you require the Smart Control app (> 15).

You can change the language of the voice prompts, choose between voice prompts and beep sounds, or deactivate the status messages with a few exceptions (e.g. rechargeable battery is empty).

Using TILE to locate the headphones

The TILE function allows you to locate the headphones at any time. If, for example, you have misplaced the headphones, the TILE function allows you to find them again quickly. For this purpose, the headphones and the smartphone (with the installed TILE app) use Bluetooth frequencies.

 Create a TILE user account and register the MOMENTUM Wireless via the TILE app.

Using the audio cable/activating flight mode

If you connect the audio cable, flight mode is activated and the Bluetooth wireless connection is deactivated.

Use the audio cable when:

• wireless transmission is not allowed, e.g. during aircraft take-off and landing,
• the headphone’s rechargeable battery is empty,
• your audio source doesn’t offer a Bluetooth connection

The functions for controlling music and/or calls or voice assistance are not possible. The active noise cancellation ANC can be fully used provided that the rechargeable battery is charged.

You can also activate the flight mode without connecting an audio cable to the headphones (> 17).

Connecting the headphones using the audio cable

• Connect the 2.5 mm jack plug of the audio cable to the headphones’ audio socket until it clicks into place. Secure the jack plug by turning it clockwise. The flight mode is activated and the Bluetooth connection is disabled.
• Connect the 3.5 mm jack plug to the audio output of your smartphone.

Connecting the headphones using the USB cable

When you connect the headphones to a Mac/PC/mobile device using the supplied USB cable, you can play audio content from your Mac/PC/mobile device directly through the headphones.

The headphones are automatically charged when you connect them to a Mac/PC/mobile device using the USB cable. If you are using the USB cable and want to deactivate all wireless connections, you have to deactivate Bluetooth on the
headphones (> 17).

Setting up the headphones as the default audio output device for your Mac/PC/mobile device

• Make sure that the headphones are connected to the Mac/PC/ mobile device using the USB cable.
• From the Systems Preferences or Control Panel of your Mac/PC/ mobile device, select “MOMENTUM 3” as the default audio device.
• Start music playback from the Mac/PC/mobile device. The music is played through the headphones.

Care and maintenance

CAUTION

Liquids can damage the electronics of the product!

Liquids entering the housing of the product can cause a short circuit and damage the electronics.

• Keep all liquids far away from the product.
• Do not use any solvents or cleansing agents.
• Clean the non-leather parts of the product only with a soft, dry cloth

Cleaning and maintaining leather parts

Regularly clean and maintain the leather parts to keep the product in pristine condition and increase its lifespan.

• Gently wipe leather parts periodically with a clean, soft cloth dampened with water.
• Do not use leather polish, detergents, or harsh soaps.
• Do not store the headphones in a damp or humid environment.

Specifications

MOMENTUM Wireless M3AEBTXL

Ear coupling	circum-aural
Transducer principle	dynamic, closed-back
Transducer	42 mm
Frequency response	6 Hz to 22 kHz
Sound pressure level (SPL)	99 dB SPL/-10 dB FS (via Bluetooth) according to EN 50332-2 118 dB SPL/1 V/1 kHz (via cable)
Impedance	active mode: 470 Ω passive mode: 100 Ω
THD (1 kHz, 100 dB SPL)	< 0.3 %
Noise cancellation	ANC technology with 4 pick-up microphones
Pick-up pattern (speech audio)	2-mic beamforming array
Power supply	built-in rechargeable lithium-polymer battery: 3,7 V, 600-700 mAh USB charging: 5 V⎓, 330 mA
Charging time of rechargeable battery	approx. 3 hours
Operating time	17 hours (Bluetooth and ANC activated)
Temperature range	operation: 0 to +55 °C charging: 0 to +40 °C storage: –25 to +70 °C
Relative humidity	operation: 25 to 75%, non condensing storage: 10 to 90%
Weight (headphones)	approx. 305 g
Magnetic field strength	10.5 mT

Bluetooth

Version	Bluetooth 5.0 compatible, class 1, BLE
Transmission frequency	2,400 to 2,483.5 MHz
Modulation	GFSK, π/4 DQPSK, 8DPSK
Output power	10 mW (max)
Profiles	HSP, HFP, AVRCP, A2DP, DIS, BAS
Codec	aptX, aptX LL, AAC, SBC
Device name	MOMENTUM 3 LE-MOMENTUM 3 (Bluetooth Low Energy only)

NFC

Frequency	13.56 MHz
Modulation	ASK
Output power	within 500 μV/m

Manufacturer Declarations

Warranty

Sennheiser Electronic GmbH & Co. KG gives a warranty of 24 months on this product.
For the current warranty conditions, please visit our website at www.sennheiser.com or contact your Sennheiser partner.

In compliance with the following requirements

• General Product Safety Directive (2001/95/EC)
• Compliant to Sound Pressure Limits according to country-specific requirements

EU declaration of conformity

RoHS Directive (2011/65/EU) Hereby, Sennheiser Electronic GmbH & Co. KG declares that the radio equipment type M3AEBTXL is in compliance with the Radio Equipment Directive (2014/53/EU).

The full text of the EU Declaration of Conformity is available at the following Internet address: www.sennheiser.com/download.

Notes on disposal

• WEEE Directive (2012/19/EU)
• Battery Directive (2006/66/EC & 2013/56/EU)

The symbol of the crossed-out wheeled bin on the product, the battery/rechargeable battery (if applicable), and/or the packaging indicates that these products must not be disposed of with normal household waste, but must be disposed of separately at the end of their operational lifetime. For packaging disposal, please observe the legal regulations on waste segregation applicable in your country.

Further information on the recycling of these products can be obtained from your municipal administration, from the municipal collection points, or from your Sennheiser partner.

The separate collection of waste electrical and electronic equipment, batteries/rechargeable batteries (if applicable) and packaging is used to promote the reuse and recycling and to prevent negative effects caused by e.g. potentially hazardous substances
contained in these products. Herewith you make an important contribution to the protection of the environment and public health.

The N-Mark is a trademark or registered trademark of NFC Forum, Inc. in the United States and in other countries.

Amazon, Alexa, and all related logos are trademarks of Amazon.com, Inc. or its affiliates. TILE and the TILE design are trademarks of Tile, Inc. Other product and company names mentioned in the user documentation may be the trademarks or registered trademarks of their respective holders.

Open Source license terms and conditions

• FIPS 180-2 SHA-224/256/384/512 implementation
  
  • Last update: 02/02/2007
  • Issue date: 04/30/2005
• HMAC-SHA-224/256/384/512 implementation
  
  • Last update: 06/15/2005
  • Issue date: 06/15/2005

Redistribution and use in source and binary forms, with or without modification,

Are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright, this list of conditions, and the following disclaimer in the documentation and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER, CAUSED AND ON

ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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