touche de sélection du mode FM
/ˈtuʃ də- selɛksjˈɔ̃ dy- ˈmɔd ˌɛfˈɛm/
n
English: fm mode select button · 调频模式选择按钮
Sens：Button that selects the sound reproduction mode (monophonic or stereophonic) on the FM band.
English: fm mode select button · 调频模式选择按钮