Garmin Mobile 20 GPS Receiver for Smartphone WAAS-Enabled GPS Receiver Adds Full-Featured GPS Navigation To Nokia Symbian, Windows Mobile & Palm Os Treo Smartphones With Bluetooth Wireless Technology Voice Prompts, Automatic Re-Routing, Choice Of Routes, Route Avoidance & Turn-By-Turn Directions Peerpoints Feature Enables Position Sharing Through Text Messaging Includes Wireless Receiver, Navigation Software, City Navigator Nt Street Maps, 12V Charger Cable, Phone Cradle & Quick Start Guide