The DC ONE-XH, at just 12.3 ounces, brings extraordinary performance, durability and lightweight comfort to helicopter pilots. Quiet and comfortable, even in very noisy helicopters. Featuring Hybrid Electronic Noise Cancelling technology and Bluetooth® wireless audio for pairing with cell phones, tablets, music players and other Bluetooth® compatible devices. The headset features a 5-foot extended coil cord with U-174/U plug. The DC ONE-XH headset comes with a 30 day, money back guarantee.