This controller is untested and could be used for parts. It is missing one button on the face and the rubber coating that is on this controller from the factory is tacky to the touch. All of the controls and the buttons and toggle switches that are on this item all work smoothly not sticking. The toggles have the very nice tactile feel whenever you click them. So please look at my photos and ask questions before purchasing. The FrSky Taranis X-Lite Drone Transmitter/Radio Controller in black is a high-quality, console transmitter designed for RC enthusiasts. With a frequency band of 2.4GHz and compatibility with a 1:6 scale, this transmitter offers precision control for your drone. The FrSky brand ensures a reliable and durable product, making it a great choice for pilots looking for a top-notch control system for their RC vehicles.