Specifications:
2.4Ghz Wireless Optical Mouse.
Three DPI:800，1000，1200.
High Quality， Elegant， Comfortable Grip.
4 key，1 scroll wheel.
Scroll easily in any direction.
Nano Mini Receiver hidden in the Mouse Bottom.
Built-in Energy Saving system.?
Wireless Technology works on most surfaces.
Mini Receiver can be contained and easy to carry.
Maximum acceleration: 14 inches per second.
Effective: 2.4GHz wireless transmission up to 10 metres operating distance.
Intelligent connectivity， No Need to Code， Plug !#!amp!*! Play.
Power: 2 x AAA Batteries(Not Included).
Compatible with win98/2000/XP/Vista，MAC，Linux，Windows 7/8.
Color:Blue/Black/White/Pink

How to use:
Step1: Open the Battery Cover(Underneath the Mouse)， Install 2pcs Alkaline AAA Batteries.
Step2: Take out the USB Nano Dongle， and close the Battery Cover.
Step3: Plug the USB Nano Dongle in the USB Port.
Step4: turn the Power Switch Button to "ON" (Underneath the Mouse).
Then the mouse will connect with the dongle automatically and start working.

package content:
1x 2.4G wireless mouse
1x wireless receiver
no retail packing