Features: For FSFLY Series receiver uses good technology, compatible with For and for JR remote control system, including JR12X, 11X, X9503, X9303, SpektrumDX10t, DX8, DX7s, DX7se, DX6i, DX5e etc., with built-in19db amplifier and 2db antenna, the device has a good quality and stable signals even in long distance. Separate outputs PPM With external small satellite. Specifications: Modulation: DSM2/DSMX Channel: 7CH Operating Voltage: 4.8V-8.4V Air distance (M): 1500M + / full Matching: a: Insert the code strip to the BIND jack of the receiver; b: switch on the power supply to the receiver c: Press and hold the switch on the transmitter d: Observe the LED on the receiver, if find that the LED is flash to Always, that means successful Matched. e: Take out the code strip. Package include: 1 x F701 Receiver