BlueTooth Speaker 2" Box-Type

https://blog.naver.com/ss5258/222070253454

- 3 batteries Li-ion 18650(this is the maker's mind)

- Bluetooth amplifier XH-A158 (Manual volume adjustment is convenient to use)

- 2 inch speaker

- Charging module TP4056

- Circular switch KCD1-105 (It is 16 pi.)

- Assembling Countersunk screw of M3 * 8~10L / 9EA

- Speaker fixing screw
Recommended for lengths of about 8 mm or less in size of M3 / 8 required