Your trackball stays in one place, so you don’t have to move your arm to move your cursor. Its sculpted shape supports your hand to let you work all day in comfort. Compact footprint Short on space? No problem. Because the trackball doesn’t move, it’s perfect for tight workspaces and busy desks. Time-tested shape Millions of people have loved the Logitech Trackman Wheel. We’ve refined its proven shape to create the M570. Logitech® Advanced 2.4 GHz wireless You get the reliability of a cord with cordless convenience and freedom—fast data transmission and virtually no delays or dropouts.