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In this project, we will have a look at a simple way to convert your cheap USB speakers to something that sounds better, looks unique and is Bluetooth.

Treasure chest Bluetooth Speaker

I made one of these a year ago. I was impressed with the sound, look and the Bluetooth function, so I decided to make another improved version.

What do you need?

  • Mini treasure chest
  • USB Speakers
  • Bluetooth 3.5mm Audio transmitter

You can get them super cheap on eBay

  • Illuminated rocker switch
  • Cable with the plug
  • 2 x USB wall chargers
  • Female spade connectors
  • Heat-shrink tubing or electrical tape

You can also see the video.

Step 1:

I drilled holes for the speakers, cable and the switch.

I used some acrylic paint, so newly drilled holes don't stand out.

At this point, I thought I'll go for the same look that my old speaker had. That's why, I painted more parts that it was necessary.

Step 2:

I took apart the cheap USB speaker.

It sounded very bad.

What can you expect from a thin plastic, that you can cut with the knife?

To avoid unnecessary soldering, I cut out all the cables from the plastic case.

I decided to use the front part from the speakers.

Using nail polish remover, I got rid of the logo.

Then, I glued speakers to the plastic.

Step 3:

I took off the plug from USB chargers and glued them together.

Then, the wire was fed into the treasure chest and knot tied, so it can't be pulled out.

I decided to use fake leather to decorate around the switch.

I am not sure if it was a good idea. It might have looked better without it.

Step 4:

Then, I attached the connectors to the cables and connected them to the switch.

Connection will depend of the switch you are using.

Not all illuminated switches are wired the same.

Step 5:

I used the plastic fixing from the original speakers, to secure the board.

Then, I plugged in speakers and Bluetooth dongle and the audio cable.

There is not need to access the volume control as all Bluetooth devices can regulate the volume.

I turned the volume to maximum and then turned it down just a little bit.

After making sure that it works, I attached the speakers to the treasure chest using screws.

The sound is very good. Much better and louder than original speakers.

The reason I used 2 x USB chargers instead of a chargers with 2 USB ports is because of the noise.

When I was making my first speaker, there was a noise introduced if Bluetooth dongle and the speaker were powered from the same charger.

Using 2 chargers solved the problem.

In the picture you can also see my first speaker.

<p>Sound test for the bluetooth adapter?</p>
<p>I can't make one as I don't have the speaker any more.</p><p>I am not a guy who can tell the difference between mp3 and wav sound, so I might not be the right person to judge, but for my ears, sound was very good.</p>
Thanks alot
Is therena way to make them portable?
<p>Yes. Instead of running a cable, just plug in a USB Bluetooth dongle and speakers into 1 or 2 USB power banks. You can keep it inside of the treasure chest.</p><p>http://www.amazon.co.uk/20000mAh-External-Battery-Charger-iPhone/dp/B00CRVDTPI</p>
There a. Sorry
<p>Hey, nice work! </p><p>I like the new, unique look of this. And now it's Bluetooth device, so it's a double win!</p>
<p>Thank You!</p>

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Bio: Innovative Projects, Diy's, Life Hacks
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