The invention discloses a mouse, belonging to the field of computer hardware equipment. At present, the defect that the fingers are inconvenient to move when the mouse is used, and the temperature difference between the hand and the mouse lead to the inflexibility of the hand during winter and summer season should be solved. The mouse includes a mouse body, a left mouse button and a right mouse button are respectively arranged near that front end of the top surface of the mouse main body, a roller is arranged between the left mouse button and the right mouse button, and the mouse is characterized by further comprising a left mouse button, a bar-shaped protrusion on the front end surface of the right mouse button, and a device for automatically adjusting the temperature installed in the mouse main body, and a water-proof protective sleeve is arranged on the mouse main body. The invention has the beneficial effects that the mouse button is more convenient through the bar protrusion, thehand is kept cool in summer by the temperature automatic regulating device, the temperature is obtained in winter, the hand is flexible, the mouse is provided with a protective cover on the surface, thereby avoiding the electronic components inside the mouse from malfunction, and effectively protecting the mouse.