Wireless headset gives you the wireless freedom to walk and talk at up to 395\' away to bring your conversation to the coffee machine, colleague or private room. Powerful battery provides up to 12 hours of use to ensure you\'ll never have to worry about running out. Digital signal processing reduces background noise and removes echo. HD voice lets you have lifelike, vibrant conversations so you don\'t have to struggle to hear what the other person is saying. Noise-canceling microphone reduces unwanted background noise and is great in crowded and noisy open working environments. PeakStop instantly removes any harmful loud sounds before they even reach your ears to keep the sound level in the safe range and protect your hearing. Remote call control lets you control the device directly from the headset.