Ness UltraProx Mifare contactless (13.56 MHz radio frequency / ISO 14443A) Mifare FOB. Encoded with encrypted use with Ness UltraProx Mifare Card readers model 101-188. The Ness smart fob (smartcard) offers full read and write functionality allowing the cards to be recycled or the easy addition of more data. The card is a memory card that is made up of sectors or folders used to store data, which are locked securely with encrypted keys. Data contained in the card is transmitted via a high frequency signal from the reader to the card at a distance of up to 5cm. Used with 101-188 Ness UltraProx Mifare Reader, or any Mifare ISO9443.