【Keyboard compatible with smartphones and tablets】Multi-device keyboard compatible with Windows, Mac, Chrome OS, Android, and iOS. 【Compact and Lightweight】279x124x16mm, only 423g, a size that can be carried anywhere in your bag. 【Connect to up to 3 devices simultaneously】Easily switch between connected devices with the Easy-Switch button. When used with a FLOW-enabled mouse, it will automatically pair with the PC the mouse is operating on. 【Up to 2 years with 2 AAA alkaline batteries】 Ultra-energy-saving design, allowing you to use the keyboard for up to 2 years without the hassle of battery replacement. Operating distance: 10m (varies depending on the usage environment and conditions.) Wireless method: Bluetooth 3.0 Angle adjustment function: None Key pressure: 60g Reliable 2-year free warranty. Supported OS: 【Windows】7/8/10, 【Mac】OS X 10.10 or later, 【Chrome】OS, 【Android】3.2 or later, 【iOS】5 or later With the K380 multi-device, make any space minimalist, modern, and multi-tasking—a perfect, ultra-thin, design-focused keyboard for typing on PCs, smartphones, and tablets. An ideal device for everyday multi-tasking. ※No box included. Thank you for viewing.