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.