Cross Compatibility Support IOS, Android and Windows system, this wireless keyboard workable for most of tablets and smart phones like Mac, iPad 2/3/4, new iPad Pro 12.9/11, iPad mini 5 2019, iPad Air, iPhone 11 / 11 Pro Max, Samsung Galaxy Tab A, Tab E, Tab S, Galaxy Note, Google Nexus, LG, Huawei, ZTE etc. Backlight Keyboard 3 levels of brightness 7 color backlit provides different visual enjoyment and makes it easy to type in the dark place. The gentle light doesn t harm your eyes. Perfect for working or gaming in the dark. Comfortable Typing Real ‘hard’ laptop style keyboard with high end ABS material. Not cheap silicone keyboard as other cases in market. A spring mechanism underneath each key ensures a tactile response with every stroke, helping you to type faster and with less error than on a touch screen. Combo with the free stand holder can stand any tablets or phones at 6 different angles. Rechargeable Laptop Keyboard Built-in rechargeable lithium battery pr