Arteck HB030B Universal Slim Portable Wireless Bluetooth 3.0 7-Colors Backlit Keyboard with Built in Rechargeable Battery, Black 7 Unique Backlight Color: 7 Elegant LED backlight with 2 brightness level and auto sleep feature to maximize power usage. Broad Compatibility: Use with all four major operating systems supporting Bluetooth (iOS, Android, Mac OS and Windows), including iPad 9.7 inch iPad 6 2018, iPad 5 2017 / 10.5 inch and 12.9 inch iPad Pro, iPad Air, Air 2 / iPad mini 4, 3, 2, 1 / iPhone / Android Tablets like Samsung Galaxy Tab, Google Nexus / Windows / Mac, etc. 6-Month Battery Life: Rechargeable lithium battery with an industry-high capacity lasts for 6 months between charges (based on 2 hours non-stop use per day and backlit off) Ultra Thin and Light: Compact size (9.7 X 5.9 X 0.24in) and light weight (0.37lb) allows easily carried and packed backpack, messager bag or case. Package contents: Arteck Backlit Bluetooth Keyboard, USB charging cable, welcome guide, our 24-month warranty and friendly customer service.