The 308i Bluetooth keyboard is compatible for various systems, and provides 10m wireless stable connection, very convenient to use. The compact layout, classic and stylish style makes it more different and unique. Features:Classic & StylishThe classic and elegant style, combining the unique round key cap, brings you different using experience. Seamless Connection to Various DevicesEnables to switch between Windows, iOS, and Android operating system compatibility modes, allowing you to use various shortcut functions. Chiclet Keys, More ComfortableThe noise-reducing technology allows to greatly reduce the click noise of the keys.Matte Surface.Unique key cap design enables to reduce the finger fatigue for long time using, and allows you to enjoy the entire using process.10m Wireless Stable ConnectionEnables 10m wireless stable connection, plug and play, very convenient to operate. Wide CompatibilityCompatible for Windows 2000, Windows XP, Windows ME, Windows VISTA, Windows 7/8/10 Auto sleep, intelligent power savingAutomatically turn on the power-saving mode to enter the sleep state, since no response for 15 minutes. Specification:Brand: AjazzModel: 308i Bluetooth KeyboardBluetooth Version: 3.0Color: Yellow, Grey, Black, White, Multi-color (Optional)Key: 84Size: 320 * 137 * 30.5mm / 12.6 * 5.4 * 1.2inchesSwitch Life: 10 Million TimesBattery: 2 * AAA (Not Included)System Requirement: for Mac, iOS, Windows, AndroidWeight: 300g / 10.6oz