... camera, RFID for options 3,WIFI, GPRS/GSM, Bluetooth interface 4,Widely used in logistics handheld pos terminal/ ... dual power mode, also with call feature. The new layout for the keyboard upgrade, the upgraded layout is more ... backup battery fully charged state, can retain data for 4 hours, to prevent accidental data loss and ... across operating temperature range. CertificationCCC,CE GPS handheld computer