Loudspeaker

A loudspeaker to be attached to an attachment member, the loudspeaker comprising:

• a temporary joint pin which is inserted into a temporary joint hole provided in the attachment member and temporarily holds the loudspeaker in a suspended state,
• wherein the temporary joint pin includes:
• a rod-like portion backwardly projecting from a rear end surface of a frame of the loudspeaker;
• a tilted surface portion which is part of a circumferential surface of the rod-like portion to be brought into contact with an inner circumferential surface of the temporary joint hole, and is tilted to become closer to a central axis of the rod-like portion from a base end of the rod-like portion toward a distal end of the rod-like portion in a direction of projection;
• and
• a flanged portion which is adjacent to the tilted surface portion at the distal end of the rod-like portion, protrudes in a direction crossing the direction of projection, and catches onto a rear surface of the attachment member.