The FS-A8S is a compact 1-way receiver designed for multi-rotor aircraft. It uses the AFHDS 2A(Aotumatic Frequescy Hopping Digital System) protocol, supports standart PPM output and has i-BUS support for up to 18 channels.
FS-X6B is a 6 channel two-way receiver designed for multi-rotor aircraft. It uses the AFHDS 2A(Automatic Frequency Hopping Digital System) protocol and dual omnidirectional antenna with superior noise reduction techniques. It's compact, easy to install and boasts a rich easy to use interface. The FS-X6B support 6 channel PWM output.