KENSINGTON HiFi Headphones with Mic 80004518 K33597WW Product Description: Kensington Hi-Fi Headphones with Mic - headphones with mic Product Type: Headphones - wired - 3.5 mm jack Compatibility: Chrome OS, Mac, Windows Headphones Form Factor: On-ear Connectivity Technology: Wired Sound Output Mode: Stereo Audio Specifications: Sensitivity 94 dB Microphone: Boom Microphone Noise Cancelling: Yes Controls: Mute, volume Manufacturer Warranty: 1-year warranty