以单片机为核心元件的电子式音乐盒，体积小，重量轻，能演奏和旋音乐，功能多，外观效果多彩，使用方便，并具有一定的商业价值。-A microcontroller as the core components of electronic music box, small size, light weight, can play and spin music, multi-function, appearance and colorful, easy to use and have some comme