Note: The protective case is compatible with iPad Pro 11 (M4) released in 2024 (Model: A2836/A2837/A3006), and is not compatible with other iPad Pro 11 versions. ^^ The quality thickened TPU back cover not only has excellent shock resistance, but also prevents the machine from being scratched when disassembling the machine. ^^ Built-in sleep magnet, the screen automatically lights up when the lid is opened, and turns off when the lid is closed. ^^ It has a built-in right pen tray, and the pen placed in the pen tray supports magnetic charging and wireless charging of Apple Pencil. ^^ The angle can be adjusted in 3 levels, and the best angle can be adjusted according to different usage scenarios.