The Cherry MW 2310 is a versatile 6 button wireless mouse with 2.4GHz technology and an ergonomic design. Its nano USB receiver is so small that it can safely stay inside the notebook even when you are on the move. The Cherry MW 2310 has an optical sensor with 3 adjustable resolutions (1000, 1600 and 2400 DPI). Using the DPI switch on the top of the mouse, the resolution can be selected at the touch of a button. An LED indicates the selected DPI. With just one set of the supplied batteries (2 x AA), the mouse can be operated for up to 3 years before they have to be changed. The mouse has an On/Off switch on the bottom so it can be switched off completely when not in use.