Building your own Bluetooth speaker can be a fun and rewarding DIY electronics project. With just a few inexpensive components and some basic skills, you can construct a surprisingly powerful little speaker that runs off Bluetooth from your smartphone or tablet.

In this comprehensive guide, I'll walk you step-by-step through assembling a mini Bluetooth speaker from scratch using recycled parts and a little soldering. I'll cover everything you need to know, from sourcing components, to wiring it up, to customizing the enclosure. By the end, you'll have an awesome tiny speaker to proudly call your own creation.

So if you're ready to enter the world of DIY audio, read on! This project promises big sound in a little package.

Gather the Required Parts and Tools

The first step is acquiring all the bits and pieces to make our speaker. Here's what you'll need:



Many of these parts can be salvaged from old electronics or purchased very cheaply. I scavenged the speaker driver and amplifier from an old Bluetooth speaker with blown batteries. The enclosure, switches, LEDs, and wiring were sourced from eBay and a local electronics shop for just a few dollars.

So don't be intimidated by the parts list - this can absolutely be a budget build using recycled components.

Wire the Amplifier and Speaker

The first actual construction step is to solder up the amplifier and speaker.

Here's how to connect them:

Be very careful when soldering to not accidentally bridge connections on the amplifier board or overheat any components. Take your time and be precise.

With that step done, you now have a working amplifier and speaker module ready to be installed in the enclosure.

Wire Power, Switches, Status LEDs

Next we need to wire up the battery, power switch, charge port, and LED indicators.

Here is how to connect them neatly:

This completes all the internal wiring. Be sure to insulate any exposed wires or solder joints with heat shrink tubing or electrical tape. Check your work carefully before moving on.

Assemble the Enclosure

Now it's time to assemble everything into the enclosure box. This often takes some problem solving to fit it all inside. Here are some tips:

Take it slowly, plan out the layout, and use the enclosure walls to neatly position the components. A clean build will give you pride and make future servicing easier.

Customize the Speaker's Sound

One of the best parts of a DIY audio project is customizing the sound. Here are some ways to put your personal touch on the speaker's audio characteristics:

Don't be afraid to try different combinations of components and enclosure designs. Getting the sound just how you like it is part of the challenge and satisfaction of DIY audio.

Tips for Using and Maintaining Your Speaker

Here are some final helpful tips for getting the most out of your new Bluetooth speaker build:

With care and maintenance, your tiny speaker will deliver great sound for years of enjoyment. And you'll have the satisfaction of showing off your hand-crafted DIY tech skills!


Building your own pocket Bluetooth speaker is an enjoyable and fulfilling electronics project. By following this guide, you can construct an awesome little speaker using recycled parts and basic tools. Customize the sound until it's just right for you. Include high-quality components for impressive audio in a tiny package.

So gather those spare parts, charge up your soldering iron, and get ready to create your own incredible DIY Bluetooth speaker! The ability to make technology yourself is empowering. And being able to enjoy the fruits of your work every day is incredibly rewarding.