Overview 1. Wide Compatibility: Use with four major operating systems that support Bluetooth (iOS, Android, Mac OS, and Windows), compatible with iPads, iPhones and Bluetooth-enabled tablets, laptops and mobile phones, such as iPad Air, iPad mini, iPad Pro, iPhone Xs Max etc. (Non-Bluetooth devices need to purchase a Bluetooth receiver by themselves) 2.ULTRA-THIN, LIGHTWEIGHT AND PORTABLE: This lightweight Bluetooth keyboard is designed for anyone who needs a portable capable keyboard for work or play, especially suitable for business travel. 3. Rechargeable & Auto Sleep Mode: The universal wireless Bluetooth keyboard uses a built-in lithium battery, easily charged by USB cable, no need to change the battery. The built-in rechargeable battery is incredibly long-lasting, the standby time is about 6 months between charges. The Bluetooth wireless keyboard can automatically enter sleep mode to save energy. 4. Stable Connection: Advanced Bluetooth technology provides a wireless connection with a 10-meter working range. But for desktop PC laptop without Bluetooth function, you need to install a third-party Bluetooth adapter (not included) to install Bluetooth driver before use. 5. Comfortable & Quiet Typing: Whisper-quiet, low-profile keys bring a whole new level of comfort to your fingertips. Plus, keep your most-used functions and media controls closer than ever with Windows dedicated hot keys. How to connect? Bluetooth keyboard connection method: 1. Turn on the "on" button on the keyboard 2. Press and hold the "connect" key on the keyboard for 2 seconds 3. Turn on the Bluetooth device you need to connect 4. Find "Bluetooth 3.0 Keyboard" in "My Device" and click "Connected" Mouse connection modes: Bluetooth connection mode: turn on the 'on' switch on the mouse, then turn on the Bluetooth device to be connected, find 'BT mouse' in the 'Device' device, and then click 'connected'.