... functions of reading and sending magnetic cards information. Integrated magnet card information decoding ,collecting and sending functions . Bi-direction read ... power supply. Operation responded by LED and buzzer.SPECIFICATIONS:Magnetic card standards:ISO7810,78111,2,3,4,5Decoding method:F2FFMCard operation ... of head:≥600,000 timesSupply voltage:DC5V±5%Current:≤50mA Mini MSR magnetic card reader