self-timer indicator
/ˈsɛlftˈaɪməɹ ˈɪndɪkˌeɪtə/
n
English · self-timer indicator中文 · 自拍定时指示灯Español · indicador de tiempoFrançais · témoin du retardateur
意味：Light that shows the self-timer is on to delay release of the shutter; this allows the photographer to be in the photo.