Most consumers are familiar with in-car portable GPS devices and handheld GPS receivers, but there's another type of GPS device that simply captures location data and transmits it via Bluetooth, or stores it. These simplified, inexpensive Bluetooth GPS receivers can provide data for Bluetooth-enabled cameras (to enable photo geotagging). They may also be used with laptop or desktop computers to feed location data to many types of navigation, tracking, surveying, and other software. Bluetooth GPS devices do not have displays or screens, but often have status indicator lights.
The big name in GPS, Garmin, offers a portable Bluetooth GPS device called the Mobile 10. This is a compact (1.7 x 3.0 x 0.7 inches) device that weighs 2 ounces. It has a rechargeable Li-Ion battery that lasts 22 hours with typical use. This is a good device for those who want serious turn-by-turn navigation capability (when linked to a laptop computer) because it includes Garmin Mobile XT and nRoute navigation software along with City Navigator NT detailed street maps. The Mobile 10 comes with a vehicle power cable.