USB Bluetooth Speaker

1.This Bluetooth speaker uses USB power; a single Type-C USB cable suffices, eliminating the need for a battery.

2.It features two 1.75-inch speakers, utilizing salvaged high-quality speaker components for exceptional value.

3.A bass diaphragm is included, using a matching speaker diaphragm. The diaphragm requires minor trimming to fit the rear casing.

4.The audio is clean and boasts exceptional vocal clarity.

5.Due to the speaker's compact size, only a single diaphragm is employed.

6.All materials purchase links are available in the attachment.

7.Listen to a sound quality demonstration on Bilibili:

【USB Bluetooth Speaker Sound Test】

https://www.bilibili.com/video/BV1rHqZYeEdA?vd_source=8193ff1a78611826e2385276c29a1552

8.Speaker and diaphragm installation require the application of sealant for optimal soundproofing; an airtight enclosure enhances bass performance.

All materials are shown below:

Assembly diagrams: