1,RFID guard patrol system 2,Strong&Durable 3,USB Communication 4,Low power consumption 101E works with RFID tags; with ... no need to press. 3. Storage: 60,000 records. 4. Communication: USB, high-speed download data.5. Power: 3.6 V lithium ... Automatic alarm when low power or storage full.USB CommunicationFunction: Communication with computer via USB port, high-speed, stable transmission and data ...