Logitech H151 Stereo Headset with Noise-Cancelling Mic

Logitech H151 Stereo Headset with Noise-Cancelling Mic ADJUSTABLE HEADBAND: The sturdy yet lightweight stereo headset has a broad range of adjustments. Ultra-soft foam ear cushions provide hours of comfort ROTATING MICROPHONE: The boom mic can rotate 180 to be worn on the left or right and tucked out of the way when you're not using it. The flexible mic can be positioned to capture your voice better and reduce background noise NOISE CANCELLING MICROPHONE ON EITHER SIDE: Wear it on your left or right side and rotate it out of the way when you are not using it. Plus, it cuts background noise – which means crystal clear calls with, family, friends, and work. Sensitivity (headphone): 122 dB /-3 dB. Sensitivity (microphone): -44 dBV/Pa /- 2.5 dB