Optical wireless mouse 
Color: 
gray 
Interface: 
Wireless - Using bluetooth technology 
Number of buttons: 3 
Other special features: 
Compatible operating systems: Windows 2000 / XP / 7/8, Mac OS, Android and Chrome 
battery: 
1 x AA 
Dimensions: 101.75 x 64.61 x 25.01 mm 
Weight: 44 g