Specification :

DPI
A button can easily help switch between 800/ 1200/ 1600DPI directly. ERGONOMIC DESIGN
Delicate and thoughtful design, finds its representation in side buttons, thumb groove and finger control slot, satisfies esthetic needs, offering greatly comfortable enjoyment in using. SIDE BUTTONS
Two convenient buttons on one side provide paging up and down function when reading or editing OFFICE documents. NOISELESS WHEEL TECHNOLOGY
Noiseless wheel technology, carefully designed to create a quiet working environment.

Resolution 800DPI
Scanning Frequency 3000FPS
Number buttons 3
Switch touch-pressure 70-80g
Key Life 2 million times
Wheel Life 2 million times
Operating voltage 5V
Operating Current