Vehicle Mobile Data Terminal Specifications Processor & Operating System CPU ARM Cortex-A9 Dual Core 1GHz, Telechips TCC8935 Operating System Android 4.4.2 OS Memory DDR3 1GB Nand Flash 8GB Display 7 inch WVGA 800*480, Capacitive screen LED backlight, wide type 350 nits Keypad & Buttons 1 power button 1 LED Interface ports RS232 serial ports 3 RS485 (Optional) 1 CVBS Input 1 CANBUS (Optional) 1 USB ports 1 x 2.0 USB OTG Accessible Expansion Slots Internal/External TF socket TF card / max 32G Internal SIM card GSM communication I/O port Digital input x 3 line Digital output x 2 line Audio Speaker 2W 8ohm, Size:40mm EAR & MIC GPS GPS/BD Module TCM3551 66 channels Sensitivity -163 dBm GPRS/WCDMA/LTE GPRS module WCDMA module LTE module SIM800 850 MHz/900 MHz/1800 MHz/1900 MHz MU709 900 MHz/1800 MHz/1900 MHz/2100MHz MU609 850 MHz/900 MHz/1800 MHz/1900 MHz HUAWEI ME909s-821 Sensitivity -106 dBm Wireless Communication Bluetooth TCM3900 WIFI Realtek 8189ES Antenna GPS Antenna External GSM Antenna External Physical Characteristics Size 190*118*25mm Weight Approximately 2.5kg Environment Main Power 10V~32V Battery No battery Operating Temperature -30? to 70? Humidity 5% - 90%