Type: Wired
Certification: CE
Number of Rollers: 1
Package: Yes
Number of Buttons: 7
Style: 3D
Hand Orientation: Right
Interface Type: USB
Size: 130 * 86 * 39mm/ 5.1 * 3.4 * 1.5in
DPI: 5500
Material: ABS
Light Effect: LED Backlight
Switch Life: 5 million cycle
Voltage Rating / electric current: DC 5V / 100mA
Buttons: left, right, scroll wheel, DPI, forward, back, double-click
Tracking Method: Optical
Note: (only the right and left button is silent ,the dpi button and forward back button has some noise)