Just plug in, switch on, the voice navigation will lead you there. Our item GPS4305 is the most feature packed portable GPS navigator on the market! Not only does it have a state of the art audiovisual feature (LG hi-fi TFT touch screen and stereo speaker), it also boasts a super sensitive and precise Centrality GPS receiver (20 channel) - you can even source 11 satellite signal at the open sky!(while 4 satellite is enough for GPS position). What`s more, the device comes with entertainment functions as a portable media player.(play music, videos, photos & eBooks) And integrated bluetooth hands-free calling and FM transmitter option . What is included? - Advanced GPS Navigator, dimension 12.5*8.3*20.5cm - Mp3 Player (mp3, wma, wav) - Movie Player (divx, avi, wmv, asf) - Photo Browser (jpg, bmp) - eBook Viewer (txt) - Bluetooth hands-free calling - FM transmitter function to enjoy music through your in-car sound system - 18 Language support: English, Spanish,Portuguese, French, German, Romanian, Russian, Denish etc... - Accessories: car holder, travel charger, car charger, stereo headphone, USB cable, case 2GB SD Card (preloaded IGO demo version map) System Section CPU Centrality 400MHz AtlasIII GPS AtlasIII + RF SDRAM Low Power 64MB FLASH 64MB O/S 5.0 Core Display Section Screen 4.3-inch LG TFT LCD Resolution 480*272 Brightness 250cd/m2 Contract Ratio 300 Touch-panel supported Navigation Section GPS frequency 1575.42MHz Receiving Sensitivity -155dB Receiving Channel 16 Position Precision 10m Position Time (cold boot) <38s Position Time (warm boot) <31s Position Time (hot boot) <3s(open sky) General Section Power Supply DC 5V Battery 4 hours playback Speaker Stereo 2.1 track