How to use the earphone hole of hotel space capsule

The earphone hole of the hotel space capsule is inserted into the earphone for use. According to the relevant public information, the plug of the earphone can be directly inserted into the jack of the device. The space capsule hotel originated in Japan and was originally set up for some office workers who could not go home. Later, it became popular all over the world because of its economy, convenience, comprehensive service, sanitation and comfort.