这是一个可以播放声音的打印机模型，支持挂绳，方便携带，可挂在书包，脖子上等。

根据相关文件可以很随意的制作成功，不需要编程。

支持通过电脑的usb来传输声音文件。

具体电路可参考开源硬件平台

4颗M1.6x8自攻螺丝

This is a printer model that can play sound, which supports a lanyard for easy portability. It can be hung on a backpack, around the neck, and other places.

According to relevant documents, it can be easily made without the need for programming.

It supports the transmission of sound files through a USB connection to a computer.

Specific circuit designs can be referenced from Here.

Four self-tapping screws M1.6x8