商品櫥窗＞蜂鳴器＞External Drive Magnetic Buzzer(Smd Type)● 型號：SMD BUZZER● 規格：7.5*7.5*2.5mm,3.6Vo–p,freq:2.7KHz● 描述：SMD BUZZER External Drive Magnetic Buzzer mini buzzer 蜂鳴器