DTF UHF 1-watt Deluxe TX JR Module - OpenLRSng Transmitter DTF UHF OpenLRSng products are the highest quality OpenLRS transmitters and receivers available Integrated lowpass output filter to reduce interference on higher frequencies Integrated Mini-USB connector for programming and firmware updates JR Module - plugs directly into compatible transmitters (ex: Taranis X9D). Requires LiPo - 6 cell NiMH is NOT sufficient. CAUTION: do not power up, even via USB for firmware/programming without an antenna!