【Compatible with Multiple Models】Compatible with the 10.9-inch iPad Air 5th generation (model: A2588 / A2589 / A2591) released in 2022 / 10.9-inch iPad Air 4th generation (model: A2072 / A2316 / A2324 / A2325) released in 2020. Please check the numbers written on the back of your iPad when ordering. The keyboard can also be used with Android, iOS, and Windows systems on iPads, PCs, and smartphones, and can be adapted as needed. 【With a Convenient Pen Holder】: Equipped with a convenient pen holder to store your iPad pencil. Convenient for storage and carrying, you can enjoy your pencil comfortably anytime, anywhere. 【High-Quality PU Leather & Energy-Saving Design】Made of soft-touch, environmentally friendly PU leather with an Italian design, it not only fully protects your precious iPad but also has a beautiful, luxurious feel. With the auto-sleep function, battery life is maintained, energy consumption is reduced, and the life of the iPad is extended. In addition, it has a built-in large-capacity lithium battery, and can be used continuously for 60-90 hours on a single full charge of 2-4 hours. Standby time is up to 100 days. 【Detachable & Multi-functional】: The keyboard is detachable, so you can remove it from the case when not in use. You can also attach only the iPad cover without the keyboard. The case is equipped with a non-slip stand function, allowing you to enjoy watching videos and reading at your favorite angle without holding it. You can type in a good posture and stress-free. 【With Japanese Instruction Manual & Quality Guarantee】With a Japanese instruction manual, operation is easy.