99ft Ultra-Long Wireless Connection H1 bluetooth headset is specially designed for truckers, call centers, construction sites and warehouses. This bluetooth headphones with noise-cancelling microphone feature an ultra-long wireless operating range up to 99 feet/30 meters away for better connectivity, faster transmission and better stability. (Note: Wireless connection distance can reach even longer distances of 50 meters/164feet, provided there are no obstacles.) World-Class Environmental Noise Cancelling Headset With the wireless headphones with microphone, you can make calls anywhere. The trucker bluetooth headset comes with a unique adaptive environmental noise-canceling chipset technology that monitors background noise and instantly produces an opposite signal, eliminating up to 99.6% unwanted disruptive noise. Extremely Comfortable HeadsetThis bluetooth headset with microphone is built for your comfort. It features an Over-Ear size soft earcups that is removable a