Speaker box and electronic device

Abstract

A speaker box and an electronic device are provided. The speaker box includes a housing, a speaker unit, and a sound-absorbing foam sheet. The housing includes an accommodating space. The speaker unit is accommodated in the accommodating space. The speaker unit is enclosed with the housing to define a rear cavity. The sound-absorbing foam sheet is adhered to an inner wall of the rear cavity. The sound-absorbing foam sheet includes a foam block and sound-absorbing powders adhered in the foam block. Through the sound-absorbing foam sheet, resonant frequency of the speaker box is effectively reduced, acoustic performance of the speaker box is improved, a structure of the speaker box is stable, and a preparation of the speaker box is simple.

Dependencies are inferred from the claim text.