The wireless SRM mouse is for right-handed use and is suitable for someone with a small hand. The Evolution SRM mouse has an optical sensor and has 4 buttons, including scroll wheel.
TheEvoluent C wireless is the streamlined version of the Evoluent-series and has amodern design. This is the wireless version. Because of the handshake positionof this vertical mouse, the wrist bends less aside and the forearm less to theinside, and therefore, the joints, muscles and tendons have a way more naturalposition.
TheRollermouse Free3 wireless combines a very high degree of precision and awireless comfort with a very flat design. The new Rollermouse Free3 is the quickest, lowest and most accurateRollermouse so far. The design is even more ergonomic than its predecessors,which mostly helps the neck and shoulders. The mouse has nine buttons in total,and seven of them are adjustable and can be adapted at ones preferences.