NXT-700 Xtreme Noise Cancelling Wireless Trucker HeadsetNaztech NXT 700Xtreme Noise Cancelling Wireless Headset Made for life on the road and engineered for crystal clear call and audio quality. The NXT 700 Xtreme's advanced digital sound processor, enhanced with patented Noisehush technology, eliminates 97% of unwanted background noises, like wind or the hum of your engine. Built tough to handle calls and heavy duty listening during your long treks with a comfortable, lightweight design and all day talk