... scope *90-degree flip *500-700 hrs notebook keyboard/portable keyboard/Mini keyboard*2.4GHZ wireless*30M/100 feet Max scope*90 ... size, enjoy the full-size keyboard, the main functionEnter the instant messaging message, URL and search text, without leaving your sofa ... to, even in dim light , enter text , browse the web, and play gamesThe perfect keyboard, Touch ,laser pointer combination for teaching, ...