100mW Micro 3DR Ardupilot Telemetry Kit v2(433MHz)This is the Micro Unmanned Telemetry Kit and as you can imagine, this comes with a micro radio telemetry module for your multi rotor to save on space and weight. This radio kit not only has the benefit of this cool feature (the micro module) but this kit offers you great range (approximately one mile with the supplied antenna) at a great price. The system runs on the 433MHz band and provides a full duplex link using HopeRF's HM TRP modules running