Cost-Effective Bundle Set- What you will get? A GMATB128BK wired trackball mouse and a 34mm replacement ball. With this trackball mouse, you will not need to mouse around to move the cursor as thumb controlled trackball stays in one place. Not only work on flat surfaces, but also on your leg, sofa and other surfaces as well. A full control of everything is within your fingers.
ERGONOMIC DESIGN- Places your hand in a natural wrist & arm position for smoother movement and less muscle tension. Comfortable finger rests just fit in the palm of your hand. No driver required. This corded trackball mouse supports 4 level DPI switch: 600 / 800 / 1200 / 1600. Noiseless click on left and right buttons. Suitable for late-night PC operation, usage in quiet places such as public places, library, hospital or meetings.
WORK WITH OPTICAL SENSORS-This replacement trackball provides excellent optical sensors sensitivity. Comfortable for finger control and ensures a smooth & agile movemen
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