Technical specifications: 1) System: a) CPU: Sumsung 266MHz ARM920T b) Operation system: WinCE 4.2 c) SDRAM (default): 64MB d) ROM (default): 64MB e) SD card: 512MB 2) GPS: a) Based on ublox uN9111 GPS chipset or base on eCompass e510 b) Built-in patch GPS antenna and optional external GPS active antenna c) Hot/warm/cold start time: 8/35/60s d) L1, C/A code, NMEA-0183 e) Location accuracy : 10 meters f) Search by name, category, address, POI, Intersection, longitude/latitude g) Routing options: recommended, most use of freeways, avoid toll roads, shortest distance/time, automatic re-routing h) Voice turn-by-turn guidance i) Dynamic pathway re-calculation on TMC events 3) I/Os: a) Storage: 1 x SD slot b) USB 1.1 device interface c) Battery: 2200mAh, can be continued to work for more than 6 hours 4) Video/audio: a) Full compatible with MP3/WMA/AVI/JPG/BMP b) Earphone output c) Built-in 2 x 1 watt max. speaker d) Earphone 20mV 5) TFT LCD monitor: a) 3.5 inch touch screen TFT LCD b) 4:3 wide screen c) Resolution: 320(W) x 3(R,G,B) x 240(H)dots d) Brightness: 10 level e) Viewing area: 70.08(H) x 52.56(V) f) Viewing angle: 30°-120° 6) Accessories: a) AC power adaptor b) Cigarette lighter adaptor c) Battery Li-ion rechargeable d) USB cable e) Vehicle mounting kit f) Earphone g) User manual 7) Environmental: a) Operating temperature: negative10 degree to positive 50 degree b) Storage temperature: negative 20 degree to positive 60 degree c) Relative humidity: 80% 8) Others a) Input power: 12V b) Dimensions: 115 x 92 x 57mm c) Gift box: 312 x 175 x 120 d) Net weight: 0.32kg (estimated)