Traxxas #6519 3-channel micro receiver is used on many Traxxas vehicles. The reliable 2.4GHz technology allow you to run many vehicles in close proximity without the interference and glitches of older 27MHz radio systems. The receiver is compatible with newer-style TQ transmitters (no folding antenna) and all Traxxas TQi transmitters. Use Traxxas stock and hop-up replacement parts to get the most out of your Traxxas RTR vehicles. This product is made from high quality materials and designed for long-lasting performance. This is replacement hardware for use on Traxxas vehicles; consult your user's manual for exact parts listings.