Yamaha Corporation

Sena Otsuka

Kazuki Kashiwase

Yasuaki Takano

Tomoaki Mori

Hiroyuki Ayame

Speaker

An earphone housing includes an inserter to be inserted into an outer ear hole, and a main body to be coupled to the inserter. The main body includes a bottom surface to contact a surface of a cavum concha, and a side surface to contact a tragus and an antitragus. The side surface includes a depressed part depressed inward and contacting a top of the antitragus, and the side surface contacts the tragus at a part other than the depressed part.

Growing community of inventors

Hamamatsu, Japan

Sena Otsuka