... handle.Full functions: RFID (HF/UHF)WIFI, Bluetooth, GPRS,WCDMA,GPS, camera supported and optioanl.2 times longer ... :within 100mWBlueooth communication functionoptionalProtocol:supporting versions 2.0GPRS/GSM/CDMA functionoptionalGSM Bands: 850/900/1800/1900 MHzInterfaceExternal ... ,RJ45adaptorExtend port:1pcs SD/MMC card slot,1pcs SIM card slot,1pcs PSAM card slotBattery parameterCapacity:7.4V 3500mAh ...