| 摘要 |
A soundless mouse includes a mouse base, a mouse case, a button, a scroll wheel, a magnetic element, a circuit board, a magnetoresistance sensor and a spring. When the button is clicked, the magnetic element is closed to the magnetoresistance sensor and the magnetoresistance sensor generates an enabling signal to the circuit board. Since the magnetic element is not in direct contact with the magnetoresistance sensor, no clicking noise is generated during operation of the soundless mouse.
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