Mobile terminal

A mobile terminal, comprising a housing and a speaker disposed in the housing, wherein the speaker comprises a box and a sound generation unit configured to generate a sound;

• the box comprises a first cover body, a second cover body and a cover plate, with the second cover body and the cover plate being located on the first cover body;
• the sound generation unit is disposed in the first cover body, a first cavity is formed between the sound generation unit and an inner bottom wall of the first cover body, and a sound hole that communicates with an external environment of the housing is disposed in the first cavity;
• a second cavity is formed between the sound generation unit and an inner top wall of the second cover body;
• the sound generation unit comprises a diaphragm configured to generate a sound through vibration, and two opposite surfaces of the diaphragm respectively correspond to the first cavity and the second cavity, an outer surface of the diaphragm faces the second chamber;
• and
• a resonant cavity is formed in the first cover body and communicates with the first cavity, a through hole is disposed on a side of the resonant cavity with the side of the resonant cavity facing the second cavity, the cover plate covers the through hole, and a microhole that communicates with the second cavity is disposed on the cover plate.