An electronic device, comprising: a first main body, a second main body, a speaker module, and a connecting tube, where the first main body and the second main body are rotatable relative to each other to a folded state or an unfolded state; the first main body is provided with a first cavity and the speaker module, and the first cavity is in communication with the speaker module; the second main body is provided with a second cavity; and the connecting tube is disposed at a rotational joint between the first main body and the second main body, two ends of the connecting tube are respectively in communication with the first cavity and the second cavity, the first cavity, the connecting tube, and the second cavity together form a rear sound cavity of the speaker module, and the connecting tube is stretchable, wherein in a case that the first main body and the second main body rotate relative to each other to the folded state, the connecting tube is in a stretched state; and in a case that the first main body and the second main body rotate relative to each other to the unfolded state, the connecting tube is in a compressed state; characterised in that the electronic device further comprises a cover plate, wherein the cover plate is disposed at the rotational joint, the cover plate, the first main body, and the second main body enclose to form a third cavity, and the connecting tube is located in the third cavity; in a case that the first main body and the second main body rotate relative to each other to the folded state, at least a portion of the cover plate is exposed; and in a case that the first main body and the second main body rotate relative to each other to the unfolded state, the first main body and the second main body jointly cover the cover plate, and the cover plate is entirely hidden in a cavity formed by the first main body and the second main body. the first main body and the second main body are rotatable relative to each other to a folded state or an unfolded state; the first main body is provided with a first cavity and the speaker module, and the first cavity is in communication with the speaker module; the second main body is provided with a second cavity; and the connecting tube is disposed at a rotational joint between the first main body and the second main body, two ends of the connecting tube are respectively in communication with the first cavity and the second cavity, the first cavity, the connecting tube, and the second cavity together form a rear sound cavity of the speaker module, and the connecting tube is stretchable, wherein in a case that the first main body and the second main body rotate relative to each other to the folded state, the connecting tube is in a stretched state; and in a case that the first main body and the second main body rotate relative to each other to the unfolded state, the connecting tube is in a compressed state; characterised in that the electronic device further comprises a cover plate, wherein the cover plate is disposed at the rotational joint, the cover plate, the first main body, and the second main body enclose to form a third cavity, and the connecting tube is located in the third cavity; in a case that the first main body and the second main body rotate relative to each other to the folded state, at least a portion of the cover plate is exposed; and in a case that the first main body and the second main body rotate relative to each other to the unfolded state, the first main body and the second main body jointly cover the cover plate, and the cover plate is entirely hidden in a cavity formed by the first main body and the second main body.