This application needs below hardware: CaricoX devices, please contact our dealers on the web page. Usages: Fleet Management, Vehicles anti-theft. Instruction: 1. For managed vehicles, please install the CaricoX device (refer to the manual included in the package). Remember the S/N of the device. 2. Install this application in the mobile phone. Create an account (need S/N of a device) in the first time and log in. 3. If want to add more devices (vehicles), please click the add button "+"