Compact and portable: Using ultra-thin design concept,the thickness of key only 4mm,ultralight to carry. | 7 Unique Backlit and 3 brightness level for extra personalization and suitable for dark environment. | Support 3 Systems devices,IOS / Android /Windows: Fn+Q=Andriod system, Fn+W=Windows System, Fn +E=IOS System. | Wide compatibility, connect a simple:suit for apple ipad 9.7/12.9, Ipad Air, ipad mini Samaung Galaxy tab a 9.7 TABLET pc laptop notebook computer etc.. wireless blue connection, simple and fast. | Material:Premium material hard plastic for main body and alumium for bottom part. Duralbe use and anti scratches. the keyboard can keep your eye at the proper level and keep your arms in the correct position.Easy and comfortable typing on quiet, easy-to-read characters.