Hoffco Distribution NC1 Over-The-Head Noise Canceling Bluetooth Headset Digital Sound Processor (DSP) for true echo and noise elimination Over-the-head design with swivel boom microphoneideal for truckers, restaurants, etc. Up to 8 hours talk time or 250 hours standby Features call answer/end, redial, volume control and voice dialing (with supported cell phone) Includes AC charger, DC charger and USB charger