The Razer Chimaera Wireless Gaming Headset for Xbox 360 has everything you need for up to 12 hours of battling and smack-talking your friends in absolute comfort. Building on Razer"s extensive expertise from PC gaming, this wireless headset is designed to provide a high definition sound combined with an ergonomic design to maximize comfort. The included base station doubles up as a charging dock and storage unit to keep your Razer Chimaera ready to dominate everyone on Xbox LIVE. Wireless Headset Circumaural Design with 50mm Driver Units Volume & Mic Control Buttons on the Headset Detachable 2.5mm Microphone Cable Headphones - Radio Frequency - 2.4GHz Wireless Range - 33ft / 10m Frequency Response - 20 - 20,000 Hz Impedance - 32O at 1kHz Sensitivity (@1kHz, 1V/Pa) - 105dB +/- 2dB Drivers - 50 mm, with Neodymium Magnets Batteries - 2 AAA Batteries (Up to 12 Hours Battery Life) Charging Time - up to 3 Hours Microphone - Frequency Response - 130 - 10,000 Hz Sensitivity (@1kHz, 1V/Pa) - -42 +- 2dB Signal-to-Noise Ratio - >55 dB Pick-up Pattern - Uni-directional Hardware Requirements - Xbox 360 - Available Optical Port PC - Available 3.5mm Headphone Jack Available 3.5mm Microphone Jack 3.5mm Headphone and Mic Cables (not included) Unit Dimensions - 7.87 x 8.03 x 3.47