Unconvincing in his ...

The negative points:
- The sound is awful.
The bass is omnipresent and saturated the horrible balances, too discrete treble, which makes this helmet is unpleasant to listen to the TV as talk and all types of music (especially classical).
Only for games it is not too distracting.

However, I am a fan of Sennheiser for a long time and I have many helmet of this brand, but it is certainly one of their worst helmet, and whatever the price paid ...