Gold Lantern BlueTrek Headset for Bluetooth phones Bluetooth connection can be up to 10 meters long and does not need line of sight Lightweight headset that connects to your phone without a cable Adjusts for both left & right ear and adjustable volume controls Rechargeable Li-Ion battery with low battery indicator. Over 2 hours of talk time. Over 2 days of stand-by time Works with non-bluetooth phones using an included adapter