GoolRC Flysky FS-i6s 2.4G 10CH AFHDS 2A RC Transmitter with FS-iA6B Receiver for RC Drone Airplane Multicopter Helicopter (Black)

Low voltage alarm function.
Each transmitter and receiver has its unique ID.
3 inch touchscreen interface, more convenient to control.
Adopts 2.4GHz AFHDS 2A digital proportional computerized remote control system.
Free software updates online allowing you to keep your system current.