Compatibility Designed for iPad Air 5th generation (model numbers A2588, A2589, A2591) and iPad Air 4th generation 10.9inch (model numbers A2316, A2324, A2325, A2073). Not compatible with other models. Detachable and Adjustable Wireless keyboard with a detachable protective case, enabling hands use for work, reading, or watching videos. Connection range up to 10 meters. Protective case can be adjusted to multiple viewing angles for a more comfortable experience. Auto Sleep/Wake Function Auto sleep when the lid is closed and wake when opened, reducing energy consumption and extending device longevity. Provides a soft and comfortable touch for interaction. Battery Life and charging On a full charge, the setup delivers at least 120 hours of continuous working time and up to 120 days of standby time. This translates to charging the device only about 3–4 times over an entire year. Please charge the keyboard for about 3 hours before first use. Use scenarios At the desk or in a small workspace: type emails, create documents, take notes, or edit presentations with the keyboard while the iPad sits in the adjustable case. On the sofa, in bed, or during commutes: enjoy reading, browsing, or streaming videos with a stable stand and convenient wireless connection. In school or on travel: take notes in class, participate in online learning, or work on projects with the detachable keyboard and angled viewing options.