iFlight ELRS receiver for 868/915MHz. ExpressLRS is an advanced open source RC system with long range, low latency, high refresh rate and lots of useful features. Learn more about ELRS here. iFlight ELRS receiver has a 12x19.5mm footprint and a durable T dipole antenna with 70mm cable length. There is a pre-powered SH1.25 connector on the receiver for easy connection to iFlight controllers.