Logitech K780 Multi-device Bluetooth + Unifying Dual Mode Wireless Keyboard with Stand (Black) Feature: 1. The input can be switched between 3 different devices. 2. Dual connection technology and long battery life. 3. Full-size keyboard, low profile buttons, button layouts to familiarize you. 4. From smartphones to iPad Pro, a wide range of devices can be securely attached to the ideal angle for easy reading and input. 5. Suitable for a variety of operating systems.