Provided is a speaker including: a frame; a magnetic circuit unit coupled to the frame and configured to generate a magnetic force; a voice coil provided in the frame and configured to vibrate according to the magnetic force; a diaphragm configured to vibrate and produce sound in response to the vibration of the voice coil; and an edge unit that connects the diaphragm and the frame, wherein the edge unit includes a first edge provided between the diaphragm and the frame and configured to control vibration of the diaphragm; and a second edge provided under the first edge in an axial direction of the speaker.