Headphones Frequency Response: 20Hz to 20kHz Impedance: 32 Ohms @ 1kHz Sensitivity: 105dB (+/-3dB) Drivers: 50mm USB power consumption: 500mA Connector: USB Type A Wireless range: up to 40 feet (12m) Battery life: Up to 10 hours Microphone Type: Unidirectional noise-cancelling condenser with adjustable, rotating boom Impedance: 2.2k Ohms Frequency Response: 100Hz to 10kHz Sensitivity: -37dB (+/-3dB) System requirements PC with USB port Windows® 7, Windows Vista®, or Windows XP Internet connection (for software download) Package contents Corsair Vengeance 2000 wireless Gaming Headset Dongle (wireless USB adapter) 1.5m USB extension cable 1.5m USB charging cable Quick Start Guide Safety Leaflet Warranty Card