Voyager 510SL Bluetooth Earset System allows you to enjoy wireless freedom in the office or on the go. Versatile, stylish, ultra-lightweight headset ensures all-day wearing comfort and folds away for easy storage. Features a noise-canceling microphone and WindSmart wind-repelling screen to clarify voice transmission and deliver superior sound quality. Ideal for on-the-go professionals. Seamlessly switch between your office phone and voice-enabled Bluetooth mobile phone, PDA or laptop at the touch of a button. With up to six hours of talk time (up to 100 hours standby) and a 33' roaming range, one headset does it all.