The iTSX/TSX for Android lets you control the vehicle-tuning and monitoring capabilities of the iTSX/TSX for Android Wireless OBD-II Interface. The iTSX/TSX for Android Wireless OBD-II Interface plugs into your vehicle's OBD-II diagnostic connector and communicates with your Apple or Android device via a secure Bluetooth wireless connection. From the factory, your vehicle's computer is calibrated for the masses, designed with the average driver in mind, not the performance enthusiast. This not only leaves valuable horsepower and torque hidden inside your vehicle, but it also makes for a mediocre driving experience. The iTSX/TSX for Android system unlocks your vehicle's hidden performance potential by wirelessly re-calibrating your vehicle's computer for maximum horsepower and torque, increased throttle response, firmer shifts and even increased fuel mileage.