DeLorme Earthmate BT-20 GPS [OLD VERSION] Wireless connectivity for your Bluetooth-enabled laptop PC, PDA, or touch-screen phone with Palm OS or Windows Mobile; also connects to laptop PCs via USB GPS voice navigation with fast satellite acquisition Slim, compact size - outside dimensions are smaller than a business card 3-way power options; lithium-ion battery with A/C charger; 12-volt in-car charger, and 3' USB cable to power device from your laptop PC Import and map your own Excel, ACT! and other database files, creating optimized routes with multiple stops