The module uses Bluetooth low energy to connect to Android 4.4 and up or Apple iOS 4.3 and later platforms. Title: Traxxas Link Wireless Module. This product is made from high quality materials and designed for long-lasting performance.
Works as expected but would prefer that it was included in the Traxxas controller in the first place. Expensive for what it is, especially when you still need to add more sensors to your model to get the most out of it.