Here are some key Features and Information about the Flysky FS2A 4CH Receiver:

Channels: The FS2A is a 4-channel receiver, allowing it to receive signals for up to four different functions or movements on your RC model.

Compatibility: The receiver is designed to work with Flysky transmitters and is part of the Flysky radio control system. It typically operates on the 2.4GHz frequency using the AFHDS (Automatic Frequency Hopping Digital System) protocol.

Compact Size: The FS2A is likely designed to be compact, making it suitable for use in various RC vehicles or other applications where space is limited.

Bind Process: To use the FS2A, you need to bind it with a compatible Flysky transmitter. The binding process establishes a secure communication link between the transmitter and receiver.

Range: The receiver provides a reasonable operational range, allowing you to control your RC model within a specified distance from the transmitter.