1. 2.5 inch, 320*240 full TFT color LCD 2. Earphone port, built-in high-fidelity 1w loudspeaker and volume adjustable 3. Buttons + touch screen 4. Built-in integrated GPS receiver based on super sensitivity SiRF STARⅢ. 5. Built-in GPS antenna and outside antenna acceptable. 6. SD card navigation software. 7. Support MP3, MP4 files. 8. Built-in internal rechargeable Li-ion battery (DC-12v) 9. Two-color direction: one for running(blue): light on when running Light off when sleeping one for battery(yellow): yellow light on when charge blue light on when full