1)Andriod,wifi,bluetooth 2)barocde scanner,gsm/3G,rfid,gps,camera 3)3500mah battery 4)SDK,soucecode free ... --Integrate Barcode Scanner , with wifi / 3G CommunicationBuilt-in HF RFID Reader; Option UHF reader (reading distance ... -in mic; Speaker and 3.5 mm stereo headphone jack; 3G(WCDMA)/EDGE/GSM(Quad band) (VOICE communication)supportPower BatteryCharging methodCharging ...