The Oyster Mouse is an ergonomic ambidextrous mouse adjustable in 5 positions. Thanks to these 5 pronation angles, from 30° to 90°, the user has the choice between several possible angles to select the one that best fit its needs or change hand position throughout the day and thus avoiding any monotony of a single position. In fact, by avoiding monotonous or static hand posture, this makes it possible to avoid repetitive movements and therefore the tensions that can arise with intensive mouse use. The Oyster Mouse can also be a useful tool helping users to make the transition from a horizontal position (traditional mouse) to a vertical position (vertical mouse) in a progressive way.