COMPATIBILITY Support IOS, Android and Windows system, this wireless keyboard workable for most of tablets and smart phones like for iPhone, for iPad 2018 2017, for iPad Pro, for iPad 2/3/4, for iPad Air 2 1, for Samsung Galaxy Tab A, for GALAXY Note, for Nexus 10, for LG, for Nexus, for Huawei, for ZTE etc. THE INDICATOROF KEYBOARD:Keyboard is easy to use, please charge it when Power indicator flashing Red. Charge indicator will be red when charging and will Turn Off after full charged(not turn green). THE BATTERY: Life time exceeds 30 days Long battery life,fast charging and power saving 1 hour charge, use 30 days(Based on 2 hours of daily use) HOW TO USE 4 steps to open a new era of office. 1.Push the button to on power light is on 2.press the connect button ,the bluetooth light is on 3.ipad select keyboard bluetooth 4.After the first connection,the next time you start using the keyboard, it will automatically connect BASIC KEY COMBINATION Switch apple system: FN+E Chinese and English input method switching: FN+Space Show physical keyboard: FN+Control Switch software: Conmmand+Tab Case switching: Capslock (If the iPad cannot be set first: Set one+general+keyboard+physical keyboard + turn off the caps lock key to switch the Latin keyboard) Support multi-system compatibility Fn + Q/Fn + W/Fn + E quick swith Package including: 1 * Bluetooth Keyboard