Perixx PERIMICE-517 Wired Ergonomic Trackball Mouse - 34mm Trackball - Matte and Glossy Trackballs Included [Major Update 2017 Sep]

Ergonomic design equipped with 1.34" trackball for right hander. Recommended for users with Repetitive Strain Injuries (RSI) symptom and heavy reliance on computer (e.g., office workers, gamers), reducing current pains and possibilities of gaining mouse arm or tennis elbow further. Matte and Glossy Trackballs Included Versatile design - Silent click design with zero noise yet solid rebound feeling, built-in switch for 1000/1600/2000 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 for you. High mobility - Instead of requesting a fixed space, trackball mouse can sit on only one spot to provide sufficient functions you need. Great traveling and business choice; Easy to clean - The trackballs can be easily removed from the mouse bottom by a finger. For detailed cleaning instruction, please refer to user manual. Compatible with Windows 7, 8, and 10; Wired USB Connection System requirement • Windows XP, Vista, 7, 8, 10 or later • USB Port Specification • Dimension: 130x107x45 mm • Approximate Weight: 120 g • Sensor: Laser • Trackball Size: 34 mm • DPI: 1000/1600/2000 dpi • Silent Click: Yes • Cable length: 1.8 m • Number of Buttons: 7 • Scroll wheel with middle click: Yes.