TRAXXAS TQi 2.4GHz (2-Channel) Intelligent Radio System With Traxxas Stability Management 38-6509R Description: Total Control. Traxxas models deserve the world's most advanced Ready-To-Race radio system. The radio system is the sole connection between the driver and machine, and needs to be precise, comfortable, powerful, and reliable. The Traxxas TQi „ ¢ radio system boasts a full range of tuning features; long-range, 2-channel versatility, high-output, 2.4GHz signal, and proven Traxxas reliability for rock-solid performance. However, the most important and innovative feature may already be in your pocket. TQi can be equipped with the revolutionary Traxxas Link Wireless Module that turns your Android or Apple iOS device 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. The Traxxas Link Wireless Module is compatible with Android 4.4+ or Apple iOS 9.0+ platforms