Electrodynamic electroacoustic transducer and electronic device

An electronic device in which an electrodynamic electroacoustic transducer is installed, wherein

• the electrodynamic electroacoustic transducer comprises:
• a first magnetic pole part formed by at least one three-dimensional body;
• a second magnetic pole part which is formed by at least one three-dimensional body, forms a magnetic gap between itself and the first magnetic pole part, and is arranged in a space excluding spaces in upper and lower face directions of the first magnetic pole part;
• a yoke for magnetically coupling one magnetic pole face of the first magnetic pole part with one magnetic pole face of the second magnetic pole part so as to support them;
• a diaphragm which is arranged in a space in an upper face direction of the first magnetic pole part and in a space in a lower face direction of the second magnetic pole part, has an outer periphery supported by the yoke, and can vibrate in up and down directions;
• and
• a voice coil adhered to the diaphragm and arranged in the magnetic gap, wherein
• at least one of the first magnetic pole part and the second magnetic pole part includes a magnet, and wherein
• the diaphragm includes an edge part that permits vibration of the diaphragm, while at least a part of the edge part opposes a lower face of the second magnetic pole part.