Speaker

A speaker, comprising:

• a holder;
• a vibration unit comprising a first diaphragm, a voice coil positioned under the first diaphragm and configured to drive the first diaphragm to vibrate to produce sound, and at least one elastic support positioned under the voice coil and elastically supporting the voice coil;
• and
• a magnetic circuit unit;
• wherein the vibration unit and the magnetic circuit unit are fixedly connected to the holder;
• each of the at least one elastic support comprises a flexible circuit board and a second diaphragm stacked on the flexible circuit board;
• the second diaphragm comprises a first fixing portion fixedly connected to the voice coil, a second fixing portion spaced apart from the first fixing portion and fixedly connected to the holder, and a suspension connecting the first fixing portion to the second fixing portion;
• the flexible circuit board comprises a first connection portion fixedly connected to the voice coil, a second connection portion spaced apart from the first connection portion and fixedly connected to the holder, and at least one elastic arm connecting the first connection portion to the second connection portion, the at least one elastic arm each comprises a first elastic arm extending from the first connection portion and a second elastic arm formed by extending from the first elastic arm while being bent reversely, the second elastic arm being connected to the second connection portion, and
• an orthographic projection of a joint between the first elastic arm and the second elastic arm towards the suspension is outside the suspension.