A sounding body contains: an accommodation chamber and at least one locking tab. A respective one of the at least one locking tab includes a fixing groove. The sounding body further contains a speaker unit which includes a fitting member having a cavity, and the cavity is engaged with a speaker. A first support loop is fitted on the fitting member and has multiple first extension portions, and each of the multiple first extension portions has a first positioning knob. The fitting member is fitted with a second support loop on which multiple second extension portions obliquely extend, and each of the multiple second extension portions has a second positioning knob engaged with the fixing groove of the respective one locking tab. Furthermore, a shock-absorbing space is defined between the speaker unit and the accommodation chamber.