Bind procedure: 1. Supply power to the EP2 RX, wait until the LED on the RX is off, immediately turn off the power, and then repeat the above steps. When the RX is powered on for the third time, the LED light will start to double-flash, indicating that the RX has entered binding mode. 2. Insert the ES24TX module or another compatible 2.4G ELRS transmitter into the radio transmitter, and select External RF mode with CRSF protocol. The ELRS menu can be accessed after copying the ELRS.LUA file to the SD card tools. Enter ELRS and press [Bind]. The LED on the RX module will remain solid if binding is successful. 3. Receiver LED status meanings: - EP2 RX: LED solid indicates successful binding or connection established. - LED double-flash indicates binding mode. - LED slow flash indicates no signal connection from the TX module. - LED fast flash indicates Wi-Fi hotspot mode; connect to the RX Wi-Fi and access 10.0.0.1 (password: expresslrs) to upgrade RX firmware. Specifications: - Model: EP2_RX - Type: ISM - MCU: ESP8285 - RF Module: SX1280IMLTRT - Antenna: SMD Ceramic antenna - Frequency Range: 2400 MHz to 2500 MHz - Maximum receive refresh rate: 500Hz - Minimum receiver refresh rate: 25Hz - Working voltage: 5V - Weight: 0.44 gram - Dimensions: 10mm x 10mm x 6mm - Gain: 3.7dB - Material: PCB - Color: Black Package Contents: 1 x Receiver Note: Light reflection and display differences may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3cm.