The number of keys:4
Key life:1，000,000 times
Power supply:2*AAA(Alkaline batteries are recommended)
Advanced 2.4GHz wireless technology, the effective working distance of up to 10 meters.
800-1000-1200-1600DPI DPI solution , fast and accurate positioning when you are using it .
Built-in auto sleep function.
Easy to install, plug and play.
MINI receiver can be hidden inside the mouse, very convenient and portable.
Bright colors for option
System supported:windows 2000/XP/Vista/ Windows 7/ Windows 8