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 Keyboard Material: ABS Size: Approx. 285 x 120 x 18mm / 0.9 x 0.2 x 0.4in Keyboard Weight: Approx. 273g / 9.6oz Applicable System: ForIOS, for Android, for Windows Connection Method: BT 3.0 Wireless Wireless Distance: Approx. 10m / 10.9yd Battery: 2 x AAA Batteries (Not Included) Language Switching Shortcuts: 1.For OS X: Ctrl+Spacebar 2.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 x Wireless Keyboard(Battery Not Included)1 x User Manual Note: 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.