Premium Protection: Crafted from high-quality PU leather, providing reliable protection against daily scratches and damage Bluetooth 5.0 Connectivity: Bluetooth 5.0 connection ensures a stable and quick link for seamless usage Long-Lasting Battery Life: Built-in 300mAh battery supports extended use without frequent recharging Adjustable Viewing Angles: Multi-angle adjustment stand offers hands-free convenience, perfect for typing or watching videos Colorful Backlit Keyboard: Customize your typing experience with multiple backlight colors and adjustable brightness levels Portable and Lightweight Design: Slim and easy-to-carry design makes it ideal for travel and on-the-go use Specifications: Bluetooth version: 5.0 Lithium battery capacity: 300mAh Working hours: 100 hours Standby time: Over 100 days Battery life: 3 years Number of keystrokes: 5 million times Key function introduction: Fn+C: Turn on the BT keyboard Fn+Ctrl: Back to the main page key Fn+Win: Close the touch version Fn+F11: Volume up