Brand New Rapoo E9310M Multi-mode Wireless Ultra-slim Keyboard, black, USB/Bluetooth, DE Multi-Device Wireless: Pair with up to 4 devices on nearly any operating system (Windows, Mac OS, Linux) via Bluetooth 5.0/4.0 and the plug-and-play USB receiver. Open up new ways to type on your PC, tablet, phone, or a second computer. Fluid Typing Experience: Laptop-like profile with incurve rounded keys for your fingertips delivers a fast, fluid, precise and quiet typing experience. 99-Key Compact Layout: A compact keyboard with number pad and all the keys you need. The keys layout is optimized to work on Windows, Mac OS and more. Multimedia Keys: Support Windows and Mac OS dual system shortcuts to 12 widely used function keys like play/pause, volume+/- and more.