RFID fobs (radio frequency Identification tags) are plastic discs with a unique identifier chip enclosed linked to your account that enable charging sessions. Sessions activated with your RFID fob are billed directly to your account. The RFID fobs cost between $5.00 and $10.00 each, plus $7.50 shipping per order. Once you have created a ChargeNet account, these can be ordered through your account via the RFID fob tab.