Build, repair, or customize your own mini quadcopter with this complete wireless radio control circuit board kit. The package features a 4-channel handheld transmitter board (Model: XN-LX102T) equipped with dual analogue joysticks, micro switches, and an onboard buzzer indicator, alongside a ultra-lightweight matching receiver board (Model: XN-CX302R). Operating on a 2.4GHz frequency band for a stable, interference-free connection, this set is ideal for hobbyists, students, and makers building 4-axis coreless motor aircraft, DIY robotics projects, and custom remote-controlled vehicles.