a) Mouse:
 1) 2.4GHz RF technology digital wirelss optical mouse
2) 6 keys
3) Working distance up to 10 meters
4) DPI changeable----using the DPI button on the top of the mouse, can switch the speed to 400dpi or 800dpi or 1600dpi
5)Interface: USB
6)rechargeable function: NO
7)batteries: 1pcs*AAA #5
8)auto powers save and sleep function, long batteries life(ordinarily we needn't change the battery in two months)
9)the receiver can be hidden in the mouse,so it is very portable.
10) red,yellow, black and more kinds of colors are available

b) 2.4G RF technology digital wirelss multi-media keyboard