Sennheiser Momentum 3 Manual | Step-by-Step User Guide

The Sennheiser Momentum 3 is a bit complex to operate given the countless features and the chaos we have when there’s no power on/off button. We have provided you with the manual on how to use these headphones.

Sennheiser Momentum 3 Manual | Everything You Need To Know

Buttons & Ports

LED Indications

How to charge?

Step 1: These headphones charge via a Type-C USB cable. Just plug the cable into the type-C port.

Step 2: Connect the other side (type-A or type-C) to the adapter or USB port. The LED light will light up from red to yellow to green (fully charged).

Charging light indication

• Low battery level: Red light flashes quickly.
• Charging (but with a charge level very low): Red light.
• Charging: Yellow light.
• Fully charged: Greenlight.
• A charging error/battery error has occurred: Red light flashes quickly 3 times

How do I connect to a PC and smartphone (Android/iPhone)?

Connecting the headphones using the audio cable

This is the simplest way and has the best sound quality.

Note: You need to turn off the headphones (folding them) to use them via an audio cable. Normally when you have the cable plugged in while they are off (folded) they bypass the Bluetooth and NFC mode and run in flight mode. If they don’t you can do the following:

Step 1: Unfold the headphones without turning them on by pressing the multi-function button for 4 seconds while unfolding the ear cups. The headphones remain switched off. You hear the voice prompts “Power off”. The LED lights up red for 2 seconds.

Or: Activate ‘flight mode‘ by pressing the voice assistant button while unfolding the ear cups and holding the button for at least 4 seconds. The headphones switch on without a Bluetooth wireless connection. You hear the voice prompts “Power on” and “No connection”. The LED lights up green for 2 seconds and then red for 2 seconds.

Step 2: Connect the 3.5mm jack plug of the audio cable to the headphones’ audio socket until it clicks into place.

Step 3: Click on the sound icon in your taskbar below, near the volume bar you will have to ‘sound output’. Make sure that you have selected “MOMENTUM 3” as the default output device.

If still no sound is heard you can rotate the cable clockwise.

Connecting the headphones using the Type-C cable

These headphones support USB Type-C audio playback. But do make sure that your device’s Type-C port supports audio playback. Usually, USB 3.1 and Thunderbolt 3 and above support audio playback.

Note: You need to turn off the headphones (folding them) to use them via a Type-C cable. Normally when you have the cable plugged in while they are off (folded) they bypass the Bluetooth and NFC mode and run in flight mode. If they don’t you can do the following:

Step 1: Unfold the headphones without turning them on by pressing the multi-function button for 4 seconds while unfolding the ear cups. The headphones remain switched off. You hear the voice prompts “Power off”. The LED lights up red for 2 seconds.

Or: Activate ‘flight mode‘ by pressing the voice assistant button while unfolding the ear cups and holding the button for at least 4 seconds. The headphones switch on without a Bluetooth wireless connection. You hear the voice prompts “Power on” and “No connection”. The LED lights up green for 2 seconds and then red for 2 seconds.

Step 2: Make sure that the headphones are connected to the device using the USB Type-C cable.

Step 3: Click on the sound icon in your taskbar below, near the volume bar you will have to ‘sound output’. Make sure that you have selected “MOMENTUM 3” as the default output device.

Step 3: Start music playback from the device.

Connecting via NFC

For smartphones with NFC, you can use these headphones via NFC:

Step 1: Turn on NFC on your smartphone.

Step 2: Turn on your headphones by unfolding them.

Step 3: Place the headphones in the range of 3 cm or less to your phone’s antenna and the NFC antenna the headphones as mentioned in the ports diagram above.

Step 4: You will hear a voice prompt “Pairing” and the LED flashes blue and red.

Step 5: Click “Yes” if a confirmation dialog for Bluetooth pairing appears on the screen of your phone (depending on the phone’s OS)

If the pairing was successful, you hear the voice prompts “Pairing successful” and “Device
connected”. The LED lights up blue for 2 seconds.

Connecting via Bluetooth

Windows 10 and 11 are notorious for Bluetooth issues. If you are unable to find your headphones while searching for Bluetooth devices, try reinstalling the Bluetooth driver.

Step 1: Activate Bluetooth on your Bluetooth device.

Step 2: Turn the headphones on (by unfolding them) and place them close to the Bluetooth device (max. 20 cm).

Step 3: Press and hold the voice assistant button for 5 seconds until you hear the voice prompt “Pairing”. The LED flashes blue and red. The headphones are in pairing mode.

Step 4: For Windows, go to Bluetooth Settings > Add new device > MOMENTUM 3”. For phone, go to Settings > Bluetooth > ‘Other devices’ or ‘new devices’ > MOMENTUM 3”. All active Bluetooth devices in the proximity of your device are displayed.

Step 5: If a PIN code is asked, enter the default PIN code is “0000”.

If the pairing was successful, you hear the voice prompts “Pairing successful” and “Device connected”. The LED lights up blue for 2 seconds.

How To Turn On

The headphones can be turned on by simply unfolding them. Sadly there’s no power button. Also, there are different modes in which you can turn on the headphones:

1. Unfold while Turned off (useful for wired mode): Press the multi-function button for 4 seconds while unfolding the ear cups.
2. Unfold with Flight mode (useful for wired mode): Press the voice assistant button while unfolding the ear cups and holding the button for at least 4 seconds.

How To Turn It Off

Fold the left ear cup and then the right ear cup inwards over a slight resistance of the joint. You hear the voice prompt “Power off” and the LED will flash red 3 times. The headphones switch off.

Standby Mode

When you remove the headphones and place them on your shoulders, the headphones switch to standby mode to save power. When you put the headphones on again, the standby mode is deactivated. There’s no other way to make them go into standby mode.

Note: When the headphones are switched off, keep a minimum distance of 10 cm between the headphones and strong magnets, as the headphones may switch on unintentionally.

Pairing Mode

The headphones automatically

Sennheiser Momentum 3 Manual – Control instructions

Before talking about the controls, it should be noted that these headphones have 4 special buttons:

1. A volume + button (volume up)
2. A multi-function button for music and call functions
3. A volume – button (volume down)
4. A voice assistance button.
5. ANC bar

These headphones support most of their control via the multi-function button:

• Play or pause music: Press the multi-function button once.
• Play the next song: Press the multi-function button twice.
• Play the previous song: Press the multi-function button three times.
• Fast-forward a track: Press twice and hold the multi-function button.
• Rewind a track: Press three times and hold the multi-function button.
• Accept a call: Press the multi-function button once.
• End a call: Press the multi-function button once.
• Reject a call: Press and hold the multi-function button for one second.
• Redial the last number: Press the multi-function button twice (only when music playback is not active).
• Accept an incoming call and end the active call: Press the multi-function button once.
• Put the active call on hold and accept an incoming call: Press the multi-function button twice.
• Toggle between active call and call on hold: Press the multi-function button twice.
• Activate the voice assistant/voice dialing: Press the voice assistant button once.
• Cancel the voice assistant/voice dialing: Press the voice assistant button once.

Sennheiser Momentum 3 Issues

Sennheiser Momentum 3 keeps pausing

The two things they recommend are:

1. Don’t set them on your head right away. Turn them on, leave them on a surface for 5 seconds to let them calibrate their sensors, and then put them on your head
2. Turn off the auto-pause / mute feature.

Sennheiser Momentum 3 low volume

A loose connection between the media player device’s audio socket and the headphone plug can cause problems such as weird static noises or too-soft sounds. Dirt or debris on the headphone jack/audio port can also affect the overall connectivity between these devices.

The Sennheiser Momentum 3 microphone is not working

The Sennheiser Momentum 3 only supports a microphone output over the Bluetooth connection. If the headphones are connected via Bluetooth, they should work fine. Also, make sure that you have selected these headphones in the microphone output sound settings in Windows.

Sennheiser Momentum 3 not charging

Make sure that all cables are well connected, both those that connect to the headset and those that connect to the power supply via the USB cable.

FAQs

Sennheiser Momentum 3 – Warnings

1. Never dismantle or refit the product to avoid malfunction or fire hazards.
2. Keep away from corrosive liquids to avoid damage to the product.
3. Keep away from extreme ambient temperatures below -10C° or above 60°C.
4. Keep away from children and pets.
5. Never touch the earphone with sharp objects, otherwise, it will easily cause scratches.
6. Don’t use the product in thunderstorm weather to avoid malfunction or electric shock.
7. If it has not been used for more than a month, please charge and maintain it in time to ensure that it is safe.
8. Since the Bluetooth signal cannot be transmitted underwater, swimming, or diving will cause the signal disconnected or intermittent.

We hope you now know how to operate the headphones from the above Sennheiser Momentum 3 Manual. Want to know anything about the earphones? Do not hesitate to ask in the comments section.