Welcome to our store! 1. [Easy to Use] This wireless keyboard switch is simple, offers better tactile response, and quiet typing without disturbing others. 2. [Small and Portable] Ultra-thin keyboard, lightweight, easy to carry, suitable for travel, business trips, libraries, cafes, etc. 3. [System Switching] Press Fn+Q to switch to iOS/OS X, Fn+W to switch to Android, and Fn+E to switch to Windows. 4. [Long Lifespan] Made from high-quality ABS material, this keyboard is sturdy, durable, and wear-resistant, ensuring a long lifespan. 5. [Multi-System Compatibility] This PC keyboard is widely used and can be used for iOS, Android, and Windows systems. Item Type: Wireless Keyboard Material: ABS Size: Approx. 285 x 120 x 18 mm / 0.9 x 0.2 x 0.4 inches Keyboard weight: Approx. 273g / 9.6oz Applicable system: For iOS, for Android, for Windows Connection method: BT 3.0 Wireless Wireless distance: Approx. 10m / 10.9yd Battery: 2 x AAA batteries (not included) Language switching shortcuts: 1. For OS X: Ctrl + Spacebar 2. For Windows: Shift + Ctrl (Note: The language switching key on the Korean keyboard can only be used under Win. When using OS X or for iOS tablets, you can only switch languages with Ctrl + Spacebar.) 1 x Wireless Keyboard (battery not included) 1 x User Manual Customers are our top priority. If you encounter any issues with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We strive to provide you with the best after-sales service.