Specification Channel: 14CH Protocol: AFHDS 2A Antenna Length: 70mm (Dual Antennas) Input Voltage: 4-6.5V DC Weight: 1.7g Size: 25x15x5mm Color: Black Signal Output: IBUS RSSI Output: Channel14 No ground interference (Transmitting and receiving 1 m from the ground): more than 500m Features - Customized for Betaflight - RSSI Display Via OSD without any hack compatible with all Flysky AFHDS-2A protocol transmitter - Telemetry Output: RSSI & RX Battery - RSSI Via Channel14 (Aux10 in Betaflight) Binding procedure Power the Fli14+ Receiver, while pressing and holding the bind button The LED will start to blink fast, which indicates the receiver is in binding mode. Enter binding mode on the suitable Transmitter and the LED on the receiver will turn into a solid state which indicates binding is successful.