Pumzee OBD V2.1 mini ELM327 OBD2 Bluetooth Auto Scanner OBDII 2 Car ELM 327 Tester Diagnostic Tool for Android Windows Symbian Latest software version V2.1 supports all OBD-II protocols. Can also be used with a PC with a Bluetooth Card.Bluetooth connection, no Batteries, Cables, or Switches.Wireless (Bluetooth) 5~ 10 meters. Read diagnostic trouble codes, both generic and manufacturer-specific, and display their meaning (over 3000 generic code definitions in the database). Please note: 1) It only works with car (does not support truck). 2)It only works with Android 4.0-Android 4.3 version. 3)Please connect the item to your phone through bluetooth OBD II option. For your vehicle to be OBD II compliant it must have a 16-pin DLC (Data Link Connector) under the dash and the Vehicle Emission Control Information Label must state that the vehicle is OBD II compliant.Retrieve Fault Codes (DTCs) and clear Check Engine lights.