COMPATIBILITY - Specifically designed for Windows 10 / Xbox One controller, Xbox one S / Xbox one Elite / Xbox one Elite 2 / Xbox Series X/S controller. Noted: NOT fit for Xbox One X (Please note: you can open or close the backlight through press the "Shift+Space" key).GREEN BACKLIGHT - The keyboard draw power from the Xbox One''s wireless controller directly. Just push this product into Xbox One controller and press the "Xbox" key, the keyboard backlight will light up. If the keyboard does not operate within 10 seconds, the backlight will automatically go into power saving state.CHAT WHILE PLAY - With firm buttons to type, text, email, enter codes. Ideal for group chat while playing games. 2.4G wireless protocol(receiver) to transfer data. Suitable for 4-stage 3.5mm earphones.ENJOY THE SOUND - Audio jack port which fits any kind of 3.5mm audio devices. Connects your headphones, earphones or headset to be wired for sound.ULTRA COMPACT - It feels good on your hand, and all the same makes a superior accessory for your game-time. Note: The data are all measured manually, please allow 1-3cm error, due to the difference in light and display, there will be a certain color difference, the actual object received shall prevail.