applications. ExpressLRS aims to achieve the best possible link performance in both speeds, latency, and range. This makes ExpressLRS one of the fastest RC links available while still offering long-range performance. Specification Weight: 0.7g (receiver only) Size: 12mm*19mm Telemetry power: 20dbm Frequency bands (Nano receiver 2.4G version): 2.4GHz ISM Frequency bands (Nano receiver 915MHz/868MHz version): 915MHz FCC/868MHz EU Input voltage: 5V Antenna connector: IPEX MHF Diagram Nano receiver 2.4G version diagram as shown below. Note: The firmware version of the Nano receiver and module manufactured by our company is ELRS 1.0.0-RC5 (the fifth test version before release); ELRS Innovative team has officially released version 1.0.0. Based on the version, we have some updates: 2.4G Nano TX Module supports 500Hz refresh rate Short press the button on the Nano module 3 times to get into the binding status. We suggest our customers upgrade their modules and receivers #39; ELRS version to 1.0.0. Significantly, the module and receiver have to be in the same ELRS version, otherwise, the frequency cannot match successfully. Configuration amp; Bind ExpressLRS uses the Crossfire serial protocol (AKA CRSF protocol) to communicate between the receiver and the flight controller board. So make sure your flight controller board supports the CRSF serial protocol. Next, we use the flight controller with Betaflight firmware to show how to set up the CRSF protocol. Package 1 * BETAFPV ELRS Nano receiver 1 * BETAFPV T antenna 2 * Spare shrink tube 4 * 30awg silicon connection wires (1 black, 1 red, 1 white, 1 yellow) 1 * pin header 1x4 1 * Nano receiver user manual