This is a brand new, unused item. It connects via Bluetooth, so the connection method differs from the official product. Please research the details yourself. Retail Price: 7999 yen Brand: Aulaiiex Compatible Devices: Surface Pro 11, Surface Pro 10, Surface Pro 9, Surface Pro 8, Surface Pro X Connectivity Technology: Bluetooth Keyboard Description: Multi-function Recommended Use for Product: Everyday use Features: Detachable keyboard with touchpad, ultra-lightweight design ☆【Compatibility】Please check your model number in [Settings > System > About] before purchasing, and refer to the compatibility chart. Compatible models are only Microsoft Surface Pro 11, Surface Pro 10, Surface Pro 9, Surface Pro 8, and Surface Pro X. ❗Not compatible with the Surface Go series and other Pro series. ☆【Bluetooth Connection and Type-C Charging】Connect your Surface Pro tablet wirelessly via Bluetooth, and you can still type normally even after detaching it. It can be fully charged in about 2 hours with a Type-C charging cable, and it can be used while charging, without consuming the tablet's power. ☆【Ultra-thin Microfiber Leather】Made of microfiber material similar to the official keyboard, it is lightweight and thin, resistant to scratches and wear, and does not easily show fingerprints. It also feels comfortable to the touch and protects the screen well. The keyboard weighs only 367g, making it easy to carry. ☆【7-Color Backlight and Long Battery Life】Equipped with a 7-color backlight with 3 levels of brightness adjustment, it can be used comfortably even in dark environments. Battery life is approximately 18-36 hours with the backlight on, approximately 180 hours with it off, and standby time is over 300 days. ⚠We recommend turning off the backlight for longer use. ☆【Note】This product does not include a stylus pen. The stylus pen shown in the videos and images is for explaining the functions. The pen slot does not have the function to charge the stylus pen.