... Touchpad 2, Virtual Scroll Wheel (page up and down control key) 3, 79 keys 4, 27 LED Backlights 5, 90- ... degree rotating Touchpad 6, Innovative Navigation keys 7, Windows Multimedia Control 8, Rechargeable & removable lithium-ion battery 9, ... mini Ver 3.0 Compatible with:Operating System: Windows 2000, Windows XP, Windows VISTA, Windows 7 Microsoft Windows Mobile 5.0 or later ,Nokia Symbian S60 ...