Deluo 32-029-12 Bluetooth GPS SiRF Star III with Streets and Trips 2007 DVD Simple, complete GPS solution for your Bluetooth-enabled device with street-level maps of the US and Canada 20 parallel satellite-tracking channels, with built-in WAAS/EGNOS demodulator for unmatched accuracy and signal reception SiRF Star III high-sensitivity chip set delivers fast satellite acquisition with low power consumption On-board rechargeable lithium-ion battery allows at least 6 hours, and averages 10 hours, of continuous operation Weighs mere ounces, measures only 2.76 x 0.89 x 1.73 inches (W x H x D), and is backed by a manufacturer's 1-year warranty