Work in your comfort zone, minimize movement and maximize comfort with the ERGO M575S wireless trackball mouse – now with silent clicks. With thumb control, you don’t have to move your arm to move the cursor – your hand remains completely supported by the ergonomically shaped rest ...Work in your comfort zone, minimize movement and maximize comfort with the ERGO M575S wireless trackball mouse – now with silent clicks. With thumb control, you don’t have to move your arm to move the cursor – your hand remains completely supported by the ergonomically shaped rest.
It fits most hands comfortably. With thumb control, you can keep your hand and forearm relaxed, so you can feel comfortable all day long. The contoured ergonomic design of the ERGO M575S trackball keeps your forearm in a more natural position and reduces muscle strain in your forearm by 25%.