This is the Traxxas TQi Docking Base. Take your radio control experience to the next level with the TQi Docking Base! The Traxxas TQi™ Radio System arrives with a full compliment of tuning features; long-range, high-output, 2.4GHz signal, and proven Traxxas reliability for rock-solid performance. The TQi 2.4GHz Radio System can be equipped with an innovative Docking Base that turns your iPhone® or iPod touch® into a powerful tuning tool for your Traxxas model. The full-color display combines with the Traxxas Link™ App to deliver an intuitive, high-definition, full-color graphical user interface that unlocks the mysteries of optimizing your radio system for ultimate vehicle control.

Traxxas Link App
Combining the TQi Docking Base with this powerful app gives you complete control over the operation and tuning of your Traxxas radio controlled model with stunning visuals and absolute precision. Install Traxxas Link telemetry sensors on the model, and Traxxas Link displays real-time data such as speed, RPM, temperature, and battery voltage with brilliant graphics. Traxxas builds the world's fastest Ready-To-Race radio-controlled models. That level of performance demands precision control. Traxxas Link gives you the tools for exacting adjustment and superior control while always keeping you informed on your model's status and speed.