Mouse device

A mouse device, comprising:

• a base plate comprising a concave part and a bulge, wherein the concave part is located at a front end of the base plate, and the bulge is located at a rear end of the base plate, wherein the bulge has a top surface with a first slant, and the first slant is inclined from an outer periphery of the top surface of the bulge toward a middle region of the top surface of the bulge;
• a main casing connected with the base plate and disposed over the base plate, wherein the main casing comprises a front swinging part and two pressing parts, wherein the front swinging part is located at a front end of the main casing and embedded within the concave part of the base plate, and the two pressing parts are located at bilateral sides of the front swinging part, respectively;
• a rear swinging part located at a rear end of the main casing, wherein the rear swinging part has a bottom surface with a second slant, wherein the second slant is inclined from an outer periphery of a bottom surface of the rear swinging part to a middle region of the bottom surface of the rear swinging part, and the bottom surface of the rear swinging part is contacted with the top surface of the bulge;
• a first circuit board disposed on the base plate;
• and
• a first switch and a second switch disposed on the first circuit board,
• wherein when a first side of the main casing is depressed, the front swinging part and the rear swinging part allow the main casing to be swung relative to the base plate in a first direction, so that the first switch is triggered by one of the two pressing parts, wherein when a second side of the main casing is depressed, the front swinging part and the rear swinging part allow the main casing to be swung relative to the base plate in a second direction, so that the second switch is triggered by the other one of the two pressing parts.