Always enjoy wireless freedom with Voyager 510SL Headset System in the office and on the road. The total new lightweight, comfortable, versatile headset provides limitless music without missing a call. Provide all day wearing comfort with a great sound quality. With this headset system, you can seamlessly switch between your office phone and your Bluetooth mobile phone at the touch of one button whenever, wherever, wirelesses. Enjoy up to 6 continuous hours of talk time and 100 hours of standby time at the touch of one button. Foldable and swivels for use on either ear. Comes in a pack, which includes Headset, deskphone adapter and HL10 handset lifter.