When we did our Sennheiser BW 900 Review back in January we found the Sennheiser to be an exceptional microphone. The BW 900 mic was exactly the type of high quality offering you would expect from the Sennheiser Company. As mentioned in the review the Achilles heel of the mic is the uncomfortable Bluetooth headset.
The uncomfortable Bluetooth headset can now be modified with a Sennheiser single sided headband and is no longer a problem. Click on this link to see a picture of the modified headset. Hybrid Sennheiser BW 900