Razer Kraken Kitty RGB USB Gaming Headset: THX 7.1 Spatial Surround Sound - Chroma RGB Lighting - Retractable Active Noise Cancelling Mic - Lightweight Aluminum Frame - For PC Cat ears and earmugs using Razer Chroma magic color technology Active noise reduction microphone Spatial Audio THX Spatial Audio Cool gel earmuffs The headset Frequency response range: 20 Hz -- 20 kHz Impedance: 32 Ω @ 1 kHz Sensitivity (@1 kHz) : 109 dB Drive unit: 50 mm neodymium magnet Inner diameter of earmuffs: 65 x 44 mm Interface type: USB Cable length: 1.3 m /4.27 ft Approximate weight: 408 g /0.60 LBS Oval earmuffs: The earmuffs are designed with a cooling gel to provide excellent acoustic insulation and comfort The microphone Frequency response range: 100 Hz -- 10 kHz Signal to noise ratio: > 60 dB Sensitivity (@1 kHz) : -45 ± 3 dB Pick up mode: one-way ECM microphone Mute function: mute with one key Ear mask control key The volume goes up and down THX Spatial Audio on/off Use audio Use audio: devices with USB ports Use Audio + microphone: a device with a USB port