FlySight 5.8GHz 32-Channel A/V Transmitter, 400mW (TX5804) 5.8Ghz 400mW Video Transmitter for FPV (Max Line of Sight Range 2-4km) RP-SMA Connector, Includes +3dBi Rubber Duck Antenna 5VDC Regulated output and Integrated Microphone Voltage Input 6 - 28VDC (2S-6S LiPO battery packs) Fully compatible with 2.4Ghz R/C radios