Type: Sound Features: Headphones 40mm diameter speakers with neodymium magnets Digital Wireless RF carrier reception (2.404-2.476GHz) Frequency Response: 20Hz - 20kHz, >120dB SPL @ 1kHz Condenser Microphone Frequency Response: 50Hz - 15kHz Headphone Amplifier: Stereo 35mW/ch, THD <1% Bass Boost: +9dB @20Hz - 150Hz Chat Boost talkback expander: +10dB gain boost at maximum game volume Digital RF provides wide 360-degree reception range Audio mutes automatically when carrier signal is lost Operates on dual AAA batteries Automatic shut down after approx 5 minutes of carrier loss or silence to conserve battery power Battery booster circuit extends battery life for up to 25 hours and assures that sound quality will be unaffected until the batteries are completely drained Weight: 7.9 oz (233g) Digital RF Wireless Transmitter Digital Wireless RF wireles...