A translucent module cover aligns with a color-changeable light source to backlight key symbols.
A miniature circuit breaker uses a coaxial lever and latch assembly to stabilize tripping force.
Broken holes in retaining members distribute pressing forces to prevent hook breaking and ensure durability.
An annular coil spring compresses inside a point-symmetrical accommodation space to extend the slider stroke and ease assembly.
A multi-function controller merges power and volume controls into one press-and-rotate component, reducing assembly complexity and improving user convenience.
A key structure generates two distinct signals by activating separate switch units at different depression depths.