writable chip: EM4305 (125KHz) | Excel, Word, or Notepad needs to be open to read the cards
125 kHz EM | the device operates as a virtual keyboard, to use it, you need to open for example an Excel, Word, or TXT document
13.56 MHz MIFARE | the device operates as a virtual keyboard, to use it, you need to open for example an Excel, Word, or TXT document
readable chip: EM4100, EM4305 (125KHz) | writable chip: EM4305 (125KHz) | powered by 2 AAA batteries