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 Compatible easy reading and input.5. Suitable Compatible a variety of operating systems.Specification:1. Size: 158x380x8mm.2. Weight: 875g.3. Supports most smartphones and tablets up to 11.3mm thick, either in portrait or landscape mode. Only Compatible landscape mode iPad Pro (12.9 inches).4. Wireless range: 10 meters.5. Battery: 2 x AAA. (not included).6. Battery life (non-rechargeable): 24 months.7. USB connection: An available USB port is required.8. Bluetooth connection: Bluetooth Smart Ready device (HID profile) that requires keyboard support.9. Logitech Technology: 2.4GHz.10. System Requirements: Computers, phones and tablets that support external keyboards. Windows 7, Windows 8, Windows 10 or higher. Chrome OS. Mac OS X 10.10 or higher. Android 5.0 or higher. iOS 5 or higher.