The FlySky FS-i6 is a 2.4GHz digital proportional radio control system commonly used for RC drones, airplanes, helicopters, and cars. It features a 6-channel transmitter with dual joysticks, programmable switches, and an LCD screen for settings. The included FS-iA6B receiver supports 6 channels, operates on 4.0-6.5V DC, and provides reliable long-range communication with failsafe protection. This combo is popular among hobbyists for its affordability, ease of use, and versatility in RC projects.