1. It is easy to install. OBD port helps you use it once connection. No need to destroy the wire. Comes with mount and dual-sided tape help tightly fix on platform. 2. Data supported by V119 version: Speed, speed, water temperature, voltage, time, intake/turbine pressure, air-fuel ratio, oil temperature, air flow, exhaust temperature, throttle, accelerator pedal D0-100 acceleration time, catalytic/exhaust temperature, ignition advance angle, Engine load, engine running time. 3. OBD is plug and play. 4. USB upgrade. 5. The brightness is automatically adjusted. 6. Parameter: Working voltage: DC 9-18V Working current: less than 500MA Standby current: less than 1MA Working temperature: -20~70 degree Celsius