SANWA Japan Luna Wired Ergonomic Trackball Mouse

SMOOTH & SNESITIVE TRACKBALL】- This rollerball mouse consists of a 40mm trackball, high-sensitive 3-dot positioning technology, and thumb control to move the cursor smoothly & accurately. Keep your wrist and mouse in one place, and reduce hand movement. A great solution for limited space, it works not only on flat surfaces but also on your leg, sofa, bed, carpet, etc. 【ERGONOMIC TILT DESIGN】- Technical 19° tilt angle, right-hand design, easy to adapt for trackball beginners. Keep your wrist natural, and allow your arm muscles and shoulder to be relived for all-day work. Help to reduce muscle stress, wrist pain, RSI, and carpal tunnel syndrome. Perfect for drawing, typing, working, playing, etc. 【SILENT CLICKS & 4 DPI ADJUSTABLE】- This mouse with ball supports 4 levels of cursor movement speed: 600/800/1200/1600. Suit different tasks, ensuring accuracy & speed. Press the middle DPI button to change it faster or slower. Features noiseless click on left/right button, suitable for usage in quiet places like public occasions, libraries, meetings, cafeterias, or at night.