This Bluetooth GPS Receiver works over Bluetooth, which means as long as you have a Bluetooth capable device—cell phone, PDA, or laptop—you can get GPS data anywhere. With the right software installed on those mobile devices, you can even use this combination as a navigation system.
The BS4100 itself has 16 hours of battery life, 3 LEDs to indicate its status, and can be powered by a USB port. It even comes with a car charger and a skid-proof pad so you can mount it on your dashboard. There’s no pricing information on their site, so you’ll have to email in for a quote.