With bluetooth communication, it's a hand-held reader used for animal identification. Technical Features: System:CPU: ARM (STM32)Data memory: EEPROM(32KB Bytes,can store about 2000 data)Keyboard: 3 keysScreen: 128*32 OLEDBeep: validClock: validBattery: AA*3PCSRF Tag: 11784/85 FDX-B and ID64Work Freq: 134.2KHZCommunication: BluetoothStandby time: 7DaysConsecutive working hours: 12HoursEnvironment ...