ASUS Marshmallow Mouse MD100 Lite adds a handy strap that makes it easy to carry around. To keep things moving, this energy-efficient mouse lasts up to a year on a single AA battery, and it features switches with a 10-million-click lifespan. A quick press of a button allows you to switch between three DPI levels, and 100% PTFE mouse feet provide a smooth glide on any flat surface.