Mini ELM327 OBD2 CAN BUS Small Bluetooth Adapter. * Bluetooth Connection, No Batteries, Cables, or Switches. * Retrieve Fault Codes (DTCs) and clear Check Engine lights. * Wireless (Bluetooth) 5~10 meter * Software included for Palm, PDA,Mobile,Windows PC,Windows Smartphone.Android, Torque, & backwards compatible with ELM. View live engine data on your Android phone or a PC with a Bluetooth Card - Connect to your vehicle ECU