USB Inteface: No external power source needed Plug in and Play so it doesn't need driver just Plug USB into your smartphone or compurter read the card number.
Strong compatibility: Supporting multiple systems Windows PC.
Applications: Card MF S50 S70 bank card and other 14443A protocol labels that support ISO14443-A/B protocol ID card and other 14443B protocol labels.
Working Status: Red indicates standby mode and green indicates successful card swiping.
Working Frequency: 13.56MHZ