How to fix Sennheiser Headsets that cannot be switched on?
If your Sennheiser Headsets won't switch on, the battery might be empty. Try charging the headset. If charging doesn't help, the battery may be completely exhausted or worn out, and you should visit an authorized Sennheiser service center for a battery replacement.
Why Sennheiser MB 660 cannot connect?
If your Sennheiser Headsets won't connect, ensure that Bluetooth is activated on your smartphone. Also, check if your smartphone is switched on.
What to do if Sennheiser MB 660 Headsets do not automatically go to pairing mode?
If your Sennheiser Headsets do not automatically go to pairing mode, first ensure that Bluetooth is activated on the headset. If that doesn't work, and the headset has been previously paired to some devices, press the Sound Effect Mode button for 4 seconds.
Why smartphone cannot detect Sennheiser MB 660?
If your smartphone cannot detect the Sennheiser Headsets, ensure that Bluetooth is activated on the headset.
Why Sennheiser MB 660 do not attenuate the ambient noise even though NoiseGard is active?
If your Sennheiser Headsets do not attenuate the ambient noise even though NoiseGard is active, it might be because the ear pads are not attached properly after replacement or removal. Ensure that ear pads are securely hooked to all corners of the ear cups.
What to do if there is no audio signal in Sennheiser Headsets?
If there is no audio signal in your Sennheiser Headsets, first check if the headset is paired with your smartphone or Bluetooth device. If not, pair them. Also, make sure the volume isn't too low by increasing it. Finally, ensure that the headset and smartphone are successfully paired and that the headset is not stuck in pairing mode.
Why Sennheiser MB 660 Headsets do not respond to Smart Pause gestures?
If your Sennheiser Headsets do not respond to Smart Pause gestures, it might be because Smart Pause is deactivated by default. Activate Smart Pause in CapTune. If that doesn't work, Smart Pause may not be compatible with your music player, so try another music player or streaming app.
What to do if Sennheiser Headsets do not respond to any button press?
If your Sennheiser Headsets don't respond to any button presses, the headset may not be functioning properly. Try restarting the headset by switching it off and on again. If that doesn't work, perform a reset.
Why voice prompts cannot be heard on Sennheiser MB 660?
If the voice prompts specified in this instruction manual cannot be heard on your Sennheiser Headsets, it is possible that the Voice Prompt is deactivated in CapTune. To resolve this, activate Voice Prompt in CapTune.
What to do if Sennheiser MB 660 Headsets do not go to pairing mode after the 4-second press of the Sound Effect Mode button?
If your Sennheiser Headsets do not go to pairing mode after pressing the Sound Effect Mode button for 4 seconds, first ensure that Bluetooth is activated on the headset. If Bluetooth is active and it still doesn't work, restart the headset by switching it off and on again, as the headset cannot enter pairing mode when music is being played or calls are in progress.
General| Type | Wireless Bluetooth Headset |
|---|---|
| Wearing style | Over-ear |
| Transducer principle | Dynamic, closed |
| Talk time | Up to 30 hours |
| Charging time | Approximately 3 hours |
| Connectivity | Bluetooth |
| Supported Profiles | A2DP, AVRCP, HFP, HSP |
| Noise Cancellation | Active Noise Cancellation (ANC) |
| Microphone | Yes |
| Battery Life | Up to 30 hours |
| Frequency Response | 17 Hz to 23, 000 Hz |
| Microphone Frequency Response | 150 Hz to 6, 800 Hz |
| Connection | Bluetooth, 3.5 mm audio jack |
| Additional Features | touch controls |
Details physical components of the MB 660 headset with numbered labels.
Details physical components of the BTD 800 USB dongle with numbered labels.
Explains pictograms for gestures and LED indications during operation and calls.
Details functions of NoiseGard/ANC switch, Sound Effect button, and Bluetooth switch.
Explains basic gesture controls and touch pad gesture controls.
Details CapTune app features, music player functions, and special headset features.
Details sound adjustments, profiles, and voice prompt language options in CapTune.
Explains how to charge the headset, charging time, and LED indicators for battery status.
Guides on downloading and installing the CapTune app from app stores.
Explains pairing the headset with Bluetooth devices using NFC or Bluetooth search.
Step-by-step guide to pair headset with smartphone using NFC technology.
Step-by-step guide to pair headset with smartphone using Bluetooth search.
Instructions on adjusting the headband for optimal fit and comfort.
Procedure for unfolding and powering on/off the MB 660 headset.
How to adjust volume for music, calls, and voice prompts using touch pad gestures.
Explains NoiseGard modes and activating/deactivating TalkThrough.
How to change sound effects and activate/deactivate Call Enhancement.
Procedure to check remaining battery life using touch pad gestures and LED indicators.
Instructions for playing music via Bluetooth or USB cable.
Details basic music control gestures like play/pause, next/previous track.
Explains Smart Pause feature for automatic music pause/resume based on headset removal.
Instructions for dialing, accepting, rejecting, ending, and managing calls.
Explains gestures for microphone mute and putting calls on hold.
Instructions for redialing and using voice commands for dialing.
How to use the Bluetooth switch to turn wireless transmission on or off.
Explains active and passive modes when using the audio cable.
Steps to use the headset in flight mode by inserting the audio cable.
Instructions for replacing ear pads and guidelines for headset storage.
Information on battery replacement by authorized service centers.
Troubleshoots headset power, audio, and Bluetooth connection problems.
Troubleshoots issues with unresponsive buttons and Smart Pause gestures.
Troubleshoots smartphone detection and automatic pairing mode issues.
Troubleshoots red LED flashes and issues with audible voice prompts.
Troubleshoots NoiseGard performance and audio stops during adjustment.
Explains Bluetooth range limits and procedures for resetting and clearing paired devices.
Details the product warranty period and how to make a claim.
Lists compliance with WEEE, Battery, Product Safety, CE, R&TTE, and RoHS directives.
Lists trademarks used in the manual, including Sennheiser, Bluetooth, aptX, etc.
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