* ADJUSTABLE HEADBAND This sturdy yet lightweight stereo headset has a broad range of adjustment. 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 for better voice capture. Frequency response (Microphone): 100Hz - 16kHz * NOISE CANCELLING MICROPHONE :It features a noise cancelling microphone that eliminates background noise and rotates out of the way when you are not using it. * STEREO SOUND: Enjoy clear audio for music, games and calls. The H110 headphones are a reliable option for daily tasks, including video calls with family or colleagues * 3.5MM AUDIO JACK CONNECTION : Simply plug the two 3.5-mm jacks into your computer and you’re ready to talk. Sensitivity (headphone): 100dB +/-3dB. Sensitivity (microphone): -58dBV/μBar, -38dBV/Pa +/-4dB * SYSTEM COMPATIBILTY:Computers/ smartphones/tablets Windows/Mac/Chrome OS