用于声音和电路学习。5 块接线板；1 个开/ 关
按钮；1 个蜂鸣器；1 个大底座；1 个小底座；
4 根红色电线；4 根黑色电线；1 个小电机；1 个
LED；1 个小电机；1 块标签镜；1 个透明罩顶；
1 个报警器支架；1 个转盘。
Used for sound and circuit learning. • Terminal block: 5 blocks • On/Off button: 1 piece, • Buzzer: 1piece, • Large base: 1piece, • Small base: 1piece, • Red wire: 4piece, • Black wire: 4 piece • Small motor: 1 piece,LED: 1piece, Small motor: 1 piece,Tag mirror: 1 piece, Transparent dome: 1piece, Alarm bracket: 1 piece,Turntable: 1 piece
