- Active Guard technology protects against acoustical shock
- Noise cancelling microphone filters out ambient noise for optimum speech clarity
- Ultra lightweight headset with 2-in-1 ear pad styles for increased comfort
- Call control units answer/end calls, control volume, Redial and reject incoming calls
- Flexible Boom arm
Sennheiser SC40 USB CTRL single-sided wideband headset for unified communication solutions, active Guard technology protects against acoustical shock.