... design, meet your flexible demands.WIFI build-in and modules of1D barcode/2D barcode,LF/HF/UHF RFID, GPRS, ... 4,000mAh)Expansion SlotsPSAM/ SIM/MicroSD(TF)-supports offline data cache Environmental Protection Environmental SealingIP64Drop Test1.5 meters drop ... WPAN(Optional)Bluetooth, class 2,transmitting range:3~5 meters Data Modules (Optional) RFIDRFID Frequency(LF) 125KHz/134.2KHzProtocol Standard( ...