Frequency Range: 915MHz FCC Receive Refresh Rate: 500Hz Minimum Receive Refresh Rate: 25Hz Operating Voltage: 5V Firmware: BETAFPV_900_RX 3.0.0.HEX Indicator Light Status:Double Flash: Binding Mode Slow Flash: No Transmit Signal Received Solid On: Transmit Signal Received Fast Flash: Wi-Fi Upgrade Mode Binding Steps: 1. After connecting the receiver to the flight controller, connect the USB port to power the flight controller. After the first USB connection, disconnect the USB port as soon as the receiver's LED turns off. Repeat this process twice. After the third USB connection, the LED double flashing, indicating the receiver is in Binding Mode. 2. After properly connecting the 915MHz (868MHz) ELRS tuner module to the remote controller, copy the ELRS.LUA file to the remote controller's SD card, located in the directory SD Card/Scripts/tools. Then run the ELRS.LUA to perform the Bind operation. 3. After successful binding, the receiver's LED turn solid and the receiver be to receive telemetry signals. Color: As Shown Material: PCB Package Contents: 1 x Receiver 1 x T-antenna 1 x Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.