US Patent 10932039 Speaker box

The present invention provides a speaker box, includes a housing having an accommodating space, a speaker unit accommodated in the accommodating space of the housing, and two sound channels formed in the accommodating space. The speaker unit includes a diaphragm that vibrates for generating sound. The diaphragm divides the accommodating space into a front sound cavity and a rear cavity. The sound channel communicates the front sound cavity with an outside. The sound channel is connected with the front sound cavity to form a front cavity. The sound channel respectively communicates the front sound cavity with the outside. The two sound channels are symmetrically disposed on opposite sides of the speaker unit respectively.