This product is a multi-system compatible smart keyboard specially designed for mobile devices. It can turn a mobile phone or tablet into a portable computer. It supports various systems and can be quickly connected via Bluetooth. After the first pairing, it can automatically reconnect. The keyboard adopts a low-arc ergonomic design that fits the palm, and is not likely to cause fatigue even after long use. It is equipped with low-noise keys, making typing comfortable and quiet, suitable for study and office environments. The keyboard has built-in multi-functional shortcut keys that can perform operations such as searching, copying, and volume adjustment, improving efficiency. The battery life is excellent, and it can last for 20 days on a full charge.