1. This mini bluetooth diagnostic scanner works on Android Torque/Mobile/PC with latest software version V1.5. If you don't have a car stereo system in your car, don't worry, you can still use your Android mobile phone to connect it. 2. This Bluetooth OBDII reader supports all OBD-II protocols and can retrieve fault codes (DTCs) and also clear engine lights. It can check car performance levels and let you see vital information about your car live with your Android device. The app download is a free app called "Torque" (Android only). 3. Most Android car stereos pre-installed the Torque app, then you can use it directly after Bluetooth connection. If there is no app, you can download the Torque Pro app from the app store or contact us for the download link to work on your Android car stereo. 4. To see if your car is OBD II compliant, please follow these simple instructions: Check the Vehicle Emission Control Label which is located under the hood or near the radiator of most vehicles. If the vehicle is compliant, the label will designate "OBD II Certified" and will have a 16-pin OBDII standard socket diagnostic port located in the cabin of the car. 5. Package includes: 1 x Bluetooth diagnostic scanner (approximately up to 50g). CD not included, if you need Torque Pro app/software, please contact us.