... (Especially for people living in the same room)4. The keyboard is antipollution, acid & alkali resistant, dustproof and waterproof but ... leading software solutions, WIDCOMM BTW (Microsoft officially designated software) keyboard software 6.The effective electricity saving: Li-polymer(charging time ... also work with Android system.11. Compatibility: Windows 98,2000,NT,ME,XP,VISTA,WIN 7 ,MAC, AND LINU