Specification: Product mode: OBDII code reader Product type: V310 Product dimensions: 155x85x25mm/6.1x3.3x1in Product Weight: 200g/0.44lb Storage temp: -30 60 Software version: V310-FLASH-V01.01 V310-MCU-V06.1 Handware version:V.1 Operating voltage: DC 9?16V provided via vehicle Working current: 80mA OBD connector: 16 PIN OBDII Product Functions: Read error and Clear diagnostic code--General and factory specified and display their meaning. Easily determines the cause of the check engine light. View freeze frame Information. Displays I/M readiness Status. Retrieves vehicle information. Data stream. Real time curve. Retrieves car speed information. DTC one click query. Supports OBD-II protocols: 1. SAE J1850 PWM (41.6Kbaud) 2. SAE J1850 VPW (10.4Kbaud) 3. ISO9141-2(5 baud init, 10.4Kbaud) 4. ISO14230-4 KWP (5 baud init, 10.4 Kbaud) 5. ISO14230-4 KWP (fast init, 10.4 Kbaud) 6. ISO15765-4 CAN (11bit ID, 500 Kbaud) 7. ISO15765-4 CAN (29bit ID, 500 Kbaud) 8. ISO15765-4 CAN (11bit ID, 250 Kbaud) 9. ISO15765-4 CAN (29bit ID, 250 Kbaud) Where can I plug the OBD? The OBD port is often under the dash, or under a panel below the handbrake in the center console. How to use it? Simply plug into the OBD II port on your car and turn ignition on and you ready to go. Warm tips: *Works on 12V provided by the vehicle battery ONLY. *Must be 16 PIN OBD II protocol. Package list : 1x Car Engine Diagnostic OBDII Reader 1x User Manual