PERIMICE-717 Wireless Ergonomic Vertical Trackball Mouse keyboard are printed with durable UV

are printed with durable UV coating

allowing you to control volume

Dimension: 4

It comes with a 1

and it’s ready to use—no drivers or setup required

PERIMICE-717 Wireless Ergonomic Vertical Trackball Mouse keyboard are printed with durable UVWireless 2. 4 GHz ergonomic trackball mouse with 7 buttons. Built in two level DPI, speed and control, easy to switch the cursor speed Natural ergonomic with right handed design. Recommended to repetitive strain injuries RSI users and the users work particularly long periods on the computer, for example, office workers, gamers, and internet surfers. Prevents possible mouse arm or tennis elbow (RSI) Programmable feature added, personalize your working