A sound generator comprises a protrusion and a recess that are alternatingly disposed in a circumferential direction. The recess comprises a first apex that is a boundary with one adjacent protrusion, a first face that is continuous to the first apex, and is recessed in a radially outward direction, a second face that is continuous to the first face, and a second apex that is continuous to the second face, and is a boundary with the other protrusion that is adjacent to the recess. A length L2 from the second apex to a deepest portion of the recess is longer than a length L1 from the first apex to the deepest portion of the recess.

The present invention comprises a fish strike indicator system that completes a circuit, based on the clicker mechanism. This notification shall include light(s) and/or wireless notification to an external device.

A sounding structure of a spinning fishing reel includes a spindle, a dial disk sleeved onto the spindle in a non-rotatable manner relative to the spindle, a line spool, and a tension clip. The line spool is sleeved onto the spindle in a rotatable manner relative to the spindle and provided with a tube portion. The tension clip has a curved shape with at least one protruding portion engaged into an annular groove of the line spool in a way that the tension clip is non-rotatable relative to the line spool, and an elastic arm extending outwardly from the at least one protruding portion in a way that the elastic arm is in contact with an undulating portion of the dial disk. As such, the sounding structure has a simple structure with fewer component, thereby facilitating assembly, reducing costs and enhancing market competitiveness.