GlobalSat BT-368i Bluetooth GPS Receiver Compatible with Windows WM5/6 / Mac / Blackberry / Palm The built-in, rechargeable Li-Ion battery provides up to 10-hours of continuous use from a full charge and with the auto-shut off feature Features include; 12VDC car and 110VAC home chargers, 3-Status LED's to indicate: Power, Bluetooth and GPS signal. Lightweight and easy to carry, the BT-368 is the ideal GPS receiver for vehicle, aviation, marine or for topographical navigation The BT-368 communicates with a host device using Bluetooth 2.0 Serial Port Profile (SPP) technology and with a powerful built-in antenna