Logitech H111 Wired headset, Stereo Headphones with noise-cancelling Microphone,3.5-mm Dual Audio Jack, PC/Mac/Laptop- Grey About this item 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. 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 + more