Perimice-517, Wired Ergonomic Trackabll Mouse - 34Mm Trackball - 7 Button Design - 1000/1600/2000 Resolution - Silent Click - 1.8M

PERIMICE-517 is a wired ergonomic 34 mm trackball mouse with 7 buttons. 34 mm trackball. Natural ergonomic with right-handed design. Recommended to Repetitive Strain Injuries RSI User and the user works particularly long periods on the computer, for example, office workers, gamers and internet surfers. Prevents possible mouse arm or tennis elbow (RSI). The trackball can be easily removed and cleaned by taping the trackball from the bottom hole of the mouse, using the blunt side of a pencil/pen. Added silent click, enjoy a quiet experience for you and your neighbor at work, home and in public. Built-in dpi switch buttons. Use two dpi switch buttons to adjust sensitivity of the trackball between 1000, 1600 and 2000 dpi. Easy to find the most suitable mouse pointer speed. If it is still too sensitive, please modify the mouse speed slower through control panel (Mouse>Pointer Options>Select a pointer speed). Cable is about 1.8 meter. It is long enough for you to connect with your computer, whether it is on or under your desk.