... , mouse, touchpad and laser pointer 4 in 1.Multi-touch and Scrolling barQWERTY keyboard has more defined buttons.Full ... OS, Linux,IOS,Android, Windows (all) with USB port.ApplicationApplicable for the lecturer, meeting presenter, classroom teacher, sales ... OS, Linux,IOS,Android, Windows (all) with USB port.ApplicationApplicable for the lecturer, meeting presenter, classroom teacher, sales ...