The DC ONE-XP, panel mount model, at just 12.3 ounces, is the lightest, full featured ANR headset in its class. Featuring advanced comfort and performance features, excellent Hybrid Electronic Noise Cancelling and Bluetooth® wireless audio for pairing with cell phones, tablets, music players and other Bluetooth® compatible devices. This headset comes with a 6-pin connector for plugging into aircraft featuring a 6-pin receptacle on the panel and draws power from the aircraft. The batteries provided with the headset are only required if the headset is disconnected from the aircraft panel. The DC ONE-X headset comes with a 30 day, money back guarantee.