20 Most Recent Sennheiser BW900 Bluetooth Headset Questions & Answers


Microphone will not register sound to Dragon 10.

I'm not sure that this will help but try turning up the mic volume in the computer's sound mixer. Have you charged the BW900's batteries? Can you adjust the mic volume knob in the base unit? Review the base and headset button descriptions in the owners manual/instructions book. Make sure you have selected the BW900 headset and NOT an office phone headset. Also check the headset to make sure you have not selected the mic mute function from the "multi switch". You can also reset the unit back to the factory default settings by re-pairing the unit, again read the manual for instructions on how to reset the system. Just some thoughts...... Jim
2/1/2018 4:19:30 AM • Sennheiser BW900... • Answered on Feb 01, 2018

My computer downloaded windows vista

Uninstall mic driver and hardware then reboot ..should fix it
10/5/2017 3:55:56 PM • Sennheiser BW900... • Answered on Oct 05, 2017

I have purchased a BW900

in windows xp!!!

click start
all programs
volume control
click devices
recording devices
check the box for your default device..

Vista / Windows 7
right click the speaker icon to the bottom right of your screen (tl bar)
click recording devices.
click set as default,, you may also adjust and set up the device..

4/27/2013 2:29:36 PM • Sennheiser BW900... • Answered on Apr 27, 2013

I have been talking with

Have you tried to install Blue soliel.


I have found this software invaluable for paring up many bluetooth items that had minor niggles with windows XP and vista

Its quite easy to use and also has a few added extras over the regular Microsoft bluetooth offerings

It also allows you to add and see many additional bluetooth devices and link in many different ways.

The free version would be my first starting point

Hope this gives you the information you need


It would be very decent of you to consider the quality of our expert’s answers and judge them accordingly as you pass through FixYa.

Thank you
11/3/2011 4:27:39 PM • Sennheiser BW900... • Answered on Nov 03, 2011

Is BW 900 Sennheiser compatible

according to Sennheiser, it depends on the compatibility of the usb device driver of your bluetooth adapter in Win7 (it is NOT a BW900 problem in their opinion)

as I understand it, you have therefore to by a new adapter and see whether it works with the BW900. Take the device AND your computer to the shop and have them install and pair
8/13/2011 6:46:51 AM • Sennheiser BW900... • Answered on Aug 13, 2011

Problem pairing bw900 hs to blackberry bold 9000

follow these instructions

Some Bluetooth® enabled devices have a passkey that you must type before you can pair with them.
  1. In the Bluetooth setup application, click Search or Listen.
  2. If necessary, click a Bluetooth enabled device.
  3. If necessary, type the passkey for the Bluetooth enabled device on your BlackBerry® device.
  4. If necessary, type the passkey for the Bluetooth enabled device on the Bluetooth enabled device.

now connect

Connect to a paired Bluetooth enabled device To perform this task, you must turn on Bluetooth® technology.
  1. On the Home screen, click the Options icon.
  2. Click Bluetooth.
  3. Highlight a Bluetooth enabled device.
  4. Press the Menu key.
  5. Click Connect.
To disconnect from a paired Bluetooth enabled device, highlight the device. Press the Menu key. Click Disconnect.

Switch to a paired Bluetooth enabled device during a call To perform this task, you must turn on Bluetooth® technology.
  1. During a call, press the Menu key.
  2. Click Activate <Bluetooth device>.

Should work after being connected.

9/12/2009 12:26:27 AM • Sennheiser BW900... • Answered on Sep 12, 2009

How can I reset the Headset for a new pairing ?

trying to paring my handset with my blackberry
7/29/2009 7:29:05 PM • Sennheiser BW900... • Answered on Jul 29, 2009

Answers home phone, handset lifter works fine, but no voice heard

Try reconnecting the bluetooth handset again,  Can you tell me what phone are you using it with? and I can look into it more Thanks.
12/13/2008 2:33:04 PM • Sennheiser BW900... • Answered on Dec 13, 2008

I have the Sennheiser HMD 280 PRO Professional

You have to wire the plug to eliminate the voltage sent by the sound card. I can't remember if it's the tip or the sleeve, so you'll have to verify with a volt meter. Use a 3 position plug to solder to the mic wires, just don't connect the wires of the mic to the one that has voltage on it
7/28/2017 11:59:07 PM • Sennheiser Radio... • Answered on Jul 28, 2017

Sennheiser MM100 bluetooth not working

Yes I had the same problem. Under some circumstances the MM100 freezes (didn't figure out when just yet). It's a software issue inside. Solution: open left speaker (the side with the charge connector and hence the battery). Discharge the battery (or just short circuit for half a second) and it works again. Sennheiser should built a reset button on these things.
7/13/2017 2:39:00 PM • Sennheiser Radio... • Answered on Jul 13, 2017
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