Wireless technology:2.4GHz Wireless distance:10m Size:105*58*31mm The number of keys:3 Resolution:1200DPI Key life:3,000,000 times Power supply:1*AA(Alkaline batteries are recommended) WIRELESS  MOUSE Stable wireless transmission 2.4GHZ wireless technology can provide a reliable connection and not be subject to any interference in the 360 degrees within 10 meters. 1200DPI solution ,ultra precision optical sampling technology . Comfortable and suitable hand feeling The mouse is made of ABS environmental protected plastic, comfortable sense of touch, The overall shape is comfortable with bumped rear part, it can reduce hand fatigue effectively. Easy to install, plug and play. MINI receiver can be hidden inside the mouse, very convenient and portable. System supported windows 2000/XP/Vista/ Windows 7/ Windows 8/Windows 10/linux/mac.