RadioMaster XR4 Gemini Xrossband Dual-Band ExpressLRS Receiver Non Stackable Here you can find the

Here you can find the HOVERAir X1 PROMAX Smart Battery and the HOVERAir X1 PRO Smart Battery

DSM2 or DSMX Remote Satellite Receiver

Its careful lightweight design uses aviation-grade 7075 aluminum parts

Could update firmware via ExpressLRS configurator

2 pre-installed

RadioMaster XR4 Gemini Xrossband Dual-Band ExpressLRS Receiver Non Stackable Here you can find theIntroducing the XR4 XrossBand Receiver The Pinnacle of compact Dual Band Performance The XR4 Receiver is a cutting edge true diversity dual band receiver featuring dual LR1121 RF transceivers, designed to leverage the advanced ExpressLRS Gemini Xrossband protocol (Gem X). It seamlessly supports both the 2. 4GHz and Sub G 900MHz bands, and its dual T type antennas provide superior reception sensitivity and connection stability for optimal performance.