The Flysky FS-R7D is a 7-channel 2.4GHz receiver designed for use with compatible Flysky transmitters across RC cars, trucks, and helicopters. It includes a built-in light control function, allowing direct management of onboard lighting without a separate controller or additional channel mixing. A single external antenna wire provides radio signal reception. This receiver is a solid choice for builders and upgraders looking to add or replace a Flysky-compatible receiver with integrated lighting capability. Features: 7 channels with dedicated light control function 2.4GHz frequency for interference-resistant operation Single external antenna wire Compatible with Flysky AFHDS and AFHDS 2A transmitters 7/7/26 cs