Experience the ultimate in wireless freedom with next-generation precision, speed, and accuracy. Superior performance is finally available in a wireless controller. Using optimized 2.4 Ghz technology, you'll enjoy a range of up to 30 feet and almost 40 hours of life on two AA batteries - and when you run low, you'll be given ample warning so you can connect a Play & Charge cable for uninterrupted play. Four units can run simultaneously, even when transmitting both directional and audio signals. Plug a Headset into the unit for full-duplex voice communication. 2.4 GHz wireless technology with 30-foot range. Lag-free play. Integrated headset port for Xbox Live play. Adjustable vibration feedback for longer battery life.