Free your desk from cables with the new generation of Omega wireless mice. OM-413 offers power efficiency, long working time on two LR03 batteries and very good tracking parameters thanks to 1200DPI default resolution. Key advantages: - Normal size - universal for destop and laptop users - Wireless freedom - 2.4GHz GFSK autolink technology - 67 RF channels - 6~10 meter operation range - Optical tracking engine, no moving parts - 1200 DPI optical precision switchable - 3 standard buttons - 3 level power saving mode - Nano receiver on mouse - Auto power save model Battery type: two AAA (LR03) alkaline batteries (not included) S y s t e m R e q u i r e m e n t Windows 2000, or Windows xp. Windows ME, Windows VISTA,Windows 7,8, Linux, Mac OS, Android 4.0+, IOS