Radiolink R6Fis 2.4GHz 6-channel receiver and supports high voltage servo.
The compatible Radiolink transmitters include RC6GS, RC4GS, T8FB and T8S.

Note RC4G and RC3S are the two transmitters that went out of production but are also compatible with R6F.

Frequency: 2.4GHz ISM band(2400MHz~2483.5MHz)

Size: 35*20*13mm  (1.05"*0.6"*0.39")

Weight: 6g(0.21oz)

Channel Qty: 6 channels

Model: cars/boats

Spread Spectrum: FHSS & 67 signal channel pseudorandom frequency sequence hopping

Antenna Length: 200mm (7.87")

Power Supply: 4.8~10.0V DC

Channel Resolution: 4096

Operating Current: 30mA

Control Range:  400M(1312ft)

Compatible transmitters: RC6GS, RC4GS, T8FB,T8S

Note RC4G, RC3S that stopped production are also compatible.