DESC: Product Features: Design: Over the Ear; Connectivity: Wireless; Usage: Consumer; Compatibility: Computers, Gaming (PC); Frequency Response: 20 Hz - 20 kHz; Driver Unit Size: 40 mm; Sensitivity: 114 dB; Earpiece: Double; Frequency Response: 100 - 16000 Hz; Microphone Type: Electret Condenser; Plug Type: Proprietary, USB; Talk Time: Up to 8 Hours; Max. Transmit Range: 70 ft. / 20 m; Volume Control: With Volume Control; On/Off Switch: With On/Off Switch; VoIP Features: Skype Certified, Windows Live Messenger; Weight: 5.47 oz.; Warranty: 1 Year