vibration mode

This emoji indicates that a cell phone is set to vibration mode. It is often used in situations where sounds should be muted.

This symbol is frequently seen in places that require quiet, such as libraries, movie theaters, and meeting rooms. It is universally understood.

With the popularization of mobile phones in the late 1990s, vibration mode was introduced as a courtesy in public spaces. In Japan and Korea, in particular, using vibration mode on public transportation and in public places has become standard etiquette.

In modern society, a culture of voluntarily using vibration mode for digital detox or work concentration has emerged. It is also gaining attention as a way to reduce stress caused by notifications from social media or messages.