About this item: Independently Developed Software :This ELM327 adapter has strong independently developed software supported for free and fit for Android/iOS.And it supports for some other popular apps such as Torque Pro, DashCommand, E OBD2,DashCommand, EOBD etc. Wide Vehicle Compatibility:It works with OBD2 / EOBD compliant cars and light trucks (year 1996 or newer in the US, including pickup trucks) which works on all OBD2 protocols including J1850 and CAN, Supports CAN, KWP2000, ISO9141-2, J1850 VPW and J1850 PWM protocols. Check Engine Light:This auto diagnostic scanner offers commonly-used functions with read & clear fault codes, turn off the MIL, O2 sensor test, I/M readiness, On-board monitor test, reads data stream, views freeze frame data, retrieves vehicle information.It will find out what the problem is fast,save your time and money. Low Energy Consumption:After your car engine stops working, the OBD2 goes to sleep in 30 minutes and won't drain your automobile's battery. It will wake up when you connect via Bluetooth, or crank the engine.So you don't have to worry about it will run down your battery by forgetting to unplugged. Important Reminder:Please follow ALL setup steps indicated in instructions for a successful connection If you have any questions, please feel free to contact us. Package Include:1*Viecar Car Diagnostics Scanner Viecar Bluetooth 4.0 perfectly support IOS and Android devices. High-speed data transmission along with low power consumption. Viecar Bluetooth 4.0 is no longer simply a screen information display system. Very largely enhance the visual experience.