Tracking Optical Laser Optical DPI ***** Connectivity USB USB USB nano receiver Compatibility Windows | Mac | Chrome OS | Linux Windows | Mac | Chrome OS Windows | Mac | Chrome OS | Linux Battery Life Corded Corded 12 months Scrolling Ratchet Wheel Ratchet Wheel Ratchet Wheel Side to Side Scrolling ✓ Easy-Switch Corded Corded Ambidextrous Design for right and left handed people ✓ ✓ ✓