1. Slim aluminum design: The Bluetooth digital keyboard is made of sturdy and high-quality aluminum material, which is durable. The ergonomic tilt provides a comfortable typing experience. It has an exquisite appearance and a slim shape (only 0.46 pounds, 5.7 x 4.4 x 0.47 inches). 2. Bluetooth 3.0 connection: Bluetooth 3.0 technology provides a wireless connection. The wireless external 34-key keyboard extends the operating distance of the existing keyboard to 10 meters. [Note: For desktop laptops without Bluetooth functionality, you need to use a third - party Bluetooth adapter (not included) before use.] 3. Large-capacity rechargeable battery: It is equipped with a built-in 160mAh rechargeable lithium battery. The Bluetooth digital keyboard can be easily charged via the included USB cable, eliminating the need to replace the battery, which is very convenient. The wireless Bluetooth keyboard also has an automatic sleep function, with lower power consumption, reflecting energy saving and product customization. Press any key to wake up the keyboard within 3 seconds. 4. High compatibility: This wireless Bluetooth digital keyboard features low-profile, quiet hotkeys and scissor-switch design, allowing you to work comfortably on your computer or laptop. It is compatible with Windows, Android, iMac, MacBook Pro, MacBook Air, MacBook, Surface Pro, laptops, desktops, tablets, etc. [Note: The 10-key is not compatible with ChromeBook. The Page Up, Page Down, Search, Screenshot, and Ins keys are not applicable to Mac OS, but other keys and number keys work normally.]