Feature:1. [Easy Operation] This wireless keyboard switch is simple, has better tactile response, quiet typing, and will not disturb others.2. [Small Portable] Ultra thin keyboard, light weight, easy to carry, suitable for travel, business trip, library, coffee shop, etc.3. [System Switching] The fn+Q key is switched to for iOS/OS X, the fn+W key is switched to for Android, and the fn+E key is switched to for Windows.4. [Long Service Life] Using high quality ABS material, this keyboard is sturdy, durable and wear resistant. with long service life.5. [Multi System Compatibility] This PC keyboard is widely used, and can be used for IOS, for Android, for Windows systems.Specification:Item Type: Wireless KeyboardMaterial: ABSSize: Approx. 285 x 120 x 18mm / 0.9 x 0.2 x 0.4in Keyboard Weight: Approx. 273g / 9.6ozApplicable System: ForIOS, for Android, for WindowsConnection Method: BT 3.0 WirelessWireless Distance: Approx. 10m / 10.9ydBattery: 2 x AAA Batteries (Not Included)Language Switching Shortcuts:1.For OS X: Ctrl+Spacebar2.For Windows: shift+ctrl (note: the Language Switch Key in the Korean Keyboard Can Only Be Used Under for Win. when Using for OS X or for IOS Tablet, You Can Only Switch Languages by Ctrl+spacebar.).Package List:1 xWireless Keyboard(Battery Not Included)1 x User ManualNote:1. This product does not have AAA batteries, which are sold separately.2. This is not the original for OS X system keyboard, but it supports for OS X system.