Specification: 

1) Cute heart shaped optical mouse. The mouse will speak " I love you" when you press the middle button.

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:80*70*30mm

Packing information: 

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