... collector 2) RFID , wifi,BT ,GSM/GPRS,barcode scaner 3)1900mah/3800bat SPECSportable data collectorOSCPU WINCE5.0,MOBILE6.0, support different ... (optional)supportPower BatteryHight capacity batteryCharging methodCharging time Rechargeable 3.7V,1900mAH battery optional 3.7V,3800mAh batteryEnclosed power supply,separate seat charge5hours ...