â Precision of Locating: Less than 15mâ CPU:SAMSUNG S3C2440A-40â Storage: SDRAM 64M, DOC Flash 64Mâ Display: SAMSUNG 4 a-si TFT 480x234â GPS receiver module: SiRF Star 111â Audio output: CVBS, PAL/NTSC â Channels: 20 Channelsâ Battery: Can change to2200mAH high-octane (provide 1 battery in standard configuration)â Card: SD CARD or Nand flashâ Touch Screen:4-wire resistiveâ Antenna: Flip GPS Antenna and reserved external GPS Antenna jackâ Sign: Red, Blue LED indicator (Charging, Stand-by, Message and Incoming call)â System support: WinCE 4.2 NETâ HOST USB1.1 (Optional)â Working time: 1. open screen without any operation: >5 h 2. Open MP3 Player: >4 hour 3. Open screen and navigation: >4 hour 4. Non - working: >600 hourâ GPS signal sensitivity: can receive less than -159dBM signalâ GPRS signal intensity: >standard 25â Working temperature range: -10 ~ +70â Storage temperature range: -40 ~ +80â Working humidity range: 45% ~ 80%RHâ Storage humidity range: 30% ~ 90%RHâ Atmospheric pressure: 860MBar ~ 1060Mba