Features:USB headphone with Microphone and Volume Control. Remarkable active noise reduction function， effectively isolate noise and enjoy details of your favorite music.Soft earmuffs and adjustable hinges for comfortable wearing.High quality and fashionable appearance.Ideal for internet chat， VOIP (voice-over-IP)， gaming， etc. Specifications:Brand: OVLENGModel: OV-Q6Color: BlackSpeaker diameter: 40mmImpedance: 32ohmSensitivity: 102dB+/-3Db (1kHz)Frequency response: 20Hz-20，000HzMaximum input power: 120mWPlug type: USBCable length: Approx. 2.1m / 6.9ftHeadphone weight: Approx. 241g / 8.5ozPackage size: 22 * 20 * 8.5cm / 8.7 * 7.9 * 3.3inPackage weight: 412g / 14.5ozPackage list:1 * Headphone