Specification: 

1) Cute heart shaped optical mouse.

2)Synthetic shape for your right or left hand with the optical technology, the motion can be detected on most surfaces, including wood, plastic, paint, etc.

3)3buttons  button life: above 3,000,000

4)Resolution: 800dpi

5)Interface: USB+PS/2 PS/2

6)Driver: Compatible with win95/98/2000/NT/ME/XP/VISTA

7) Unit size:93*82*33mm  small unite size:80*70*30mm

Packing information: 

MEAS: 47.5*43*27.5CM
G.W./N.W.: 10.7/9.7KGS  QTY: 100PCS/CTN    small one G.W./N.W.: 9.5/8.5KGS