UMX Extra 300 3D BNF Basic Completely built with servos, power system and Spektrum 2.4Ghz DSM2 Receiver installed, but without the battery and charger Small and light enough for experienced pilots to fly almost anywhere indoors Advanced laser-cut flat foam structure and carbon reinforcement results in a lighter structure providing high-performance 3D flight in an indoor space Requires a DSM2/DSMX aircraft transmitter, 1S Li-Po battery and charger ? Sold Separately