Traxxas 6553X Telemetry Expander 2.0 and GPS Module 2.0, TQi Tadio System

This is the Traxxas Telemetry 20 Expander and 20 gPS Module comboFeatures:Telemetry Expander: Installs quickly and easily no parts to replace or swap Waterproof case keeps the expander safe from the elements Six available ports for connecting auto-detectable plug and play sensors gPS Uses gPS and gLONASS global positioning for accurate, real-time speed Speed readout not affected by gear ratio or tire-size Easy plug-and-play installation no programming required Waterproof when installed Automatically detected and configured by the Traxxas Link App compatible with the E-Revo VXL 20, Rustler 4X4, Unlimited Desert Racer, X-MaxxIncludes: (1) Telemetry Expander 20 (#6550X) (1) gPS Module 20 (#6551X)Telemetry Expander 20 (#6550X) (1) Receiver data cable (optional data cables available)Requires: TQi radio system with Wireless Module (#6511) TSM receiver (#6533) Apple device running iOS 70 or higher, or Android-equipped device with Android 44 and higher Traxxas Link App (latest version available free on google Play and the App Store)