Three button wireless mouse

Fitted with two AA batteries, PASSENGER will function for a number of weeks at constant use, since after just a short break in use the reading rate of the optical sensor is reduced, cutting the energy consumption. A red light in the mouse wheel warns when power is low so batteries may be changed before they are fully discharged. When not in use, the USB receiver is stored neatly inside the PASSENGER and switches off automatically to avoid accidental power use.