Security anywhere. With the MagTek BulleT Secure Card Reader Authenticator (SCRA), security comes with the flexibility and portability of a Bluetooth wireless interface. Small enough to fit into the palm of your hand, the BulleT enables secure wireless communications with a PC or mobile phone using the popular Bluetooth interface. Not only does the BulleT encrypt card data from the moment the card is swiped, but it also enables card authentication to immediately detect counterfeit or altered cards.