Ergonomic Trackball Mouse

Ergonomic design equipped with 34 mm trackball for the right-hander. Recommended for users with Repetitive Strain Injuries (RSI) symptom and heavy reliance on the computer, reducing current pains and possibilities of gaining mouse arm or tennis elbow further. Silent click design with zero noise yet solid rebound feeling, built-in switch for 400/1000 dpi easy adjustment, Plug and Play instant connection to any devices, 1.8m durable long cable for flexible setup. PERIMICE-517 is designed that smart to provide a worry-free working environment. Instead of requesting a fixed space, trackball mouse can sit on only one spot to provide sufficient functions you need. Great travelling and business choice. The trackballs can be easily removed from the mouse bottom by a finger. For detailed cleaning instruction, please refer to the user manual.