CHERRY MW 2310 2.0, Optical, Wireless, Radio Frequency, 2.40 GHz

Six-button mouse with 2.4 GHz wireless technology features a nano USB receiver that's so small it can safely stay inside the notebook even when you're on the move. DPI switch on the top of the mouse can be used to quickly change the resolution at the touch of a button. Energy-efficient operation allows you to use this mouse for up to three years with just one set of the included AA batteries. On/off switch on the bottom of the mouse allows you to shut off the mouse completely when not in use. Ambidextrous design is optimized for both left-handed and right-handed operation.