Introduction: Make Your Own Simple & Cheap Portable Bluetooth Speaker

Picture of Make Your Own Simple & Cheap Portable Bluetooth Speaker

In this project I will show you how to build a simple portable bluetooth speaker that can play its tunes up to 30 hours continuously. Most of the used components can be found for only 22$ in total which makes this a pretty low budget project. Let's get started!

Step 1: Watch the Video!

The video gives you a good overview on how to create a portable bluetooth speaker. In the next steps though I will present you additional information so that you can create this project easily as well.

Step 2: Order Your Parts!

Picture of Order Your Parts!

Here you can find a parts list with example seller for your convenience:

2x Li-Ion Battery:

1x Bluetooth board:

1x SPDT Switch:

1x TP4056 board:

1x Micro USB Breakout:

1x MT3608 Boost Converter:



2x Li-Ion Battery: -

1x Bluetooth board:

1x SPDT Switch:

1x TP4056 board:

1x Micro USB Breakout:

1x MT3608 Boost Converter:


2x Li-Ion Battery:

1x Bluetooth board:

1x SPDT Switch:

1x TP4056 board:

1x Micro USB Breakout:

1x MT3608 Boost Converter:


Step 3: Build Your Enclosure!

Here you can find the .dxf file that I created with the LibreCAD software or you can simply use the attached .pdf files to print out the templates that I created.

Step 4: Do the Wiring!

Picture of Do the Wiring!

The wiring is rather simple to begin with, but here you can find a couple of pictures on how the insides of my bluetooth speaker look like. Feel free to use them as a reference.

Step 5: Success!

Picture of Success!

You did it! You just created your own portable Bluetooth Speaker!

Feel free to check out my YouTube channel for more awesome projects:

You can also follow me on Facebook, Twitter and Google+ for news about upcoming projects and behind the scenes information:


Kanak Shilledar RM (author)2017-12-02

From where did you get the datasheets

DavidT567 (author)2017-10-30

I made this but when I increase the volume about 90% to 100% the speaker stops working and the light on the Bluetooth board get off and the music stops.what can be the problem?Pls help me

klem1 (author)2017-10-10


great project.

i have question.

Can i use TP4056 to charge 2 batteries bellow in parallel with mobile charger?


Joebisc1 (author)2017-08-30

which resistor did you use on the led. Thanks

Joebisc1 (author)2017-08-18

if I wanted to add tweeters, would I need another amp and more battery power? If so what do you suggest. Thanks

LewPratt made it! (author)2017-06-15

Greetings! I made a version of this box for my wife, Aimee. I reduced the overall dimensions of the design quite a bit as she wanted to move it often. I purchased the items off ebay and when they arrived, I got to work.

I designed the layout in Autocad and used my laser cutter to cut out the parts. If you would like use the design, I have printed it to PDF,

I found the reduced size made it difficult to squeeze in all the parts, but it was worth it. I am pleased with the sound and volume of the project, although it would sound better if I had given the speakers more internal air volume and separated the speakers from each other with an internal wall.

I covered the flower petal cutouts with glitter and painted it blue at my wife's request. When I asked why blue, she said it was her favorite color. When I asked why the pink glitter, she said it make a blue box girly. OK, you got it Dear!

She uses the speakers every morning while on the treadmill and while cooking. The charge lasts FOREVER with these batteries. What a great find these were! We have charged it twice since Mother's Day. The initial charge, and once to make sure it had plenty when she took it to her school to show her special needs class. It did not need a charge that day, but she wanted to make sure it lasted all day. We have not charged it since and have no idea when it is going to run out!

Thank you for the fantastic project!

TomTurbo83 (author)2017-05-21

Hello Scott! Another great project! Thank you!
I have a question about the very loud voice, which screams at me every time at the start! Is there a way to turn this off or to make it at least quieter?
Many Thanks!

Andy32 (author)2017-05-10

Great project !! I am currently doing it so thnak you for this great tutorial. I had just a problem for soldering the battery together (dangerous, no spot welding etc...) so I buy this case holder. I hope it will be fine, but at least it's not dangerous ^^

Thank you again ! It's my first DIY project and it's thanks to you =)

monza77 (author)2017-05-02

great project!!

monza77 made it! (author)2017-05-02

this is good project i was surprised on the sound quality thanks.

monza77 made it! (author)2017-05-02

great project i was surprised on how it sounded. hardest part was soldering the LEDs for the charger board thanks.

JosD12 (author)2016-12-21


I am using pam8403 module to drive two 4ohm 3watt speakers using a 2200mAh Li-ion battery but when I increase the volume around 75 to 80% on my phone the sound starts to cut off (speaker cones move in and out extremely during the time),and when I increase the volume further it becomes worse and sounds p p p pp ppp p ppp p p... I cannot understand what is the problem, could it be because there is no enough current ?,I also tried a 2 amp 5v dc input from a fast charger of my phone but same is the case

please help me with this.

Zecatfish937 (author)JosD122017-04-09

I belive the problem may be your speakers, I saw a guide that suggested having speakers with double the wattage rating of your amp.

MustafaA96 (author)2016-11-16

The Bluetooth board at Amazon already has an amplifier. Do we still need a Booster Power Module?

ChaseB16 (author)MustafaA962016-11-16

The amplifier on the bluetooth board you are referring to serves an entirely different purpose than the boost module. The amplifier 'amplifies' the audio signal so it can be played over passive speakers.

However for this project, he is using the boost module to regulate (ie. control) the voltage coming from the lithium batteries to always be 5V. The bluetooth board has specified input voltage of 5v so the regulation is necessary for proper operation as well as to protection. Going over the specified input voltage could fry the bluetooth board! Hope that made sense

White-Tea (author)ChaseB162017-02-16

However, the specifications of the board from Amazon state

Power: 2.1 interface 8-25v DC power supply

So anything between 8 and 25v should be ok, right? So if 4 lithium batteries of 3.7v are used in series, this should work without boost converter? And if a booster module were to be used, am I wrong to think that putting the batteries in series would be beneficial as the voltage is already closer to the target voltage? Or does is this not important/negligible?

GreatScottLab (author)MustafaA962016-11-16


deathofme (author)2016-12-24

why the mt3608 and not the xl6009 module???

Skorekaj (author)2016-12-21

Hey there Great Scott, i got one of these boards and trying to re-create this project. Do you know if there is any way to increase the sound output as its not very loud?

Jeremyv30 (author)2016-12-12

Hey GreatScott,

I'm planning to build a more advanced version of this speaker, but I like to get some help on the design and on the speakers.

In the attachment you can find my circuit, the design is based on yours and that of Barry_L (

These are the electrical components I would like to use (besides the speaker units and batteries which I already have):

3.5 mm board

Protection Board

Bluetooth Module

Extension Board

Switches for music control



On/off Switch


Input switch

Step up module

(I'm also planning to add a NFC tag and two passive radiators) Do you have any suggestions on how to improve this design?

Secondly I sort of have a problem with my speakers, the units are magnetically shielded, just like yours seem to be (this is done so there is no interference with crt screens). This makes the speakers pretty heavy and also large. Do you know how to remove this shielding or do you know a better place to find a way how? (google didn't serve me well)

(Deleted previous comment to fix the links)

d4v1d2OO1 (author)2016-12-11

Could you make a plan 4 how to Connect everything?

LucasM195 (author)2016-12-02

Does a 19V 2.1A works on this board?

GreatScottLab (author)LucasM1952016-12-02


JoeX4 (author)2016-11-25

I did this with a pair of really old Blaupunkt speakers I had laying around, worked great and the sound quality is perfect, I am thinking of throwing a pair of twitters to the picture see how it goes. For the box I used a wooden speaker box sold at any electronic store, they have better sound quality. Thanks for the great instructable.

shivakumar1995 (author)2016-11-24

hey how did you convert the librecad file to pdf format and print it ? the print is not coming to the same scale as the drawing

deathofme (author)2016-11-20

nice instructable and video plain simple and to the point. easy to understand and to follow. even if you are not electronic savvy still simple to understand.

b10101 (author)2016-11-15

Hey Mate,

Very nice instructable, I really enjoy your style of commentary and clear video. Very concise. Great work. Ignore the knockers mate, keep up the good work. Going to have a look at what other stuff you have made.


SkodaWabo (author)2016-11-15

A circuit diagram would be nice :)

RobertoA96 (author)2016-11-15

Simple & cheap??????

The materials cost $29,80, plus enclosure plus speakers.

What do you undestand for "cheap"???

In Ebay you can buy it starting at $12,00

KurtRoesener (author)RobertoA962016-11-15

At $12 it will also break after 2 months ;)

GennadyK2 (author)2016-11-15

Interesting idea.

Definitely detailed wiring will be a big plus!

Is it possible to publish?

smpcorp (author)2016-11-15

One of the best bluetooth speaker designs I've seen. There are options of using higher buck boost supplies to bring the voltage higher and use a higher power stereo amplifier. The instructions are very simple and obvious for anyone with the most basic knowledge with electronics construction. The cheapest sources for parts are from and

Nobiwan42 (author)2016-11-15

For some of us that are not wiring saavy, do you have a step by step list of how to wire it all correctly? That would be crazy helpful. Thanks.

TrailM (author)Nobiwan422016-11-15

I also second this. A wiring diagram would certainly be helpful. I am not quite sure what the purpose of the step up power module is for. You also lost me on the purpose of the led. Great tutorial....thanks for sharing.

KurtRoesener (author)Nobiwan422016-11-15

I second this request, without the wiring diagram this is next to impossible to figure out.

doctor_g (author)2016-11-15

This is a great video and instructable. My one concern is that
having the speakers pointed to the side means that the sound is not
directed at your ears, especially the high frequencies, which are quite
directional. In any case, the electronic details are excellent! Thank you!

Hedgehog777 (author)2016-11-15

Could you not have fitted all the electronic parts inside the original speaker case? This would have saved on all the woodwork you did and still left you with a nice case. Still a good project though.

rspellicer (author)2016-11-14

Nice. What speakers did you use? Any recommendations?

kbouchard1 (author)rspellicer2016-11-15

The amplifier is 3 watt but so are typical low cost computer speakers. Some are marked on the magnet back of the speaker as to what rating they are.

My plan is to just use the speakers themselves, by mounting everything inside 1 or both if space is a problem. Just plug the old USB cable *(if they are that type)* for charging them, and use the speakers amplifier and hook it up to the bluetooth unit.

Options are wide open. I have a pair of bluetooth stereo headset. I just need to put pushbuttons (5) on the case and solder in place of the ones that are on the board. Then also mount the microphone into a hole as these ones function to answer a phone call as well. They even have a play pause next track last track functions making it even better. So all I need to purcahse in my case is batteries, charger unit, and possibly a voltage converter, The last item I may not need. Then also a switch to allow for powering it on and off etc.

After completion I will post sources to those who might also want to DIY this.

Irwini (author)rspellicer2016-11-15

Watch the video, 2:25

kbouchard1 (author)2016-11-15

I am thinking of doing this but to just use my 2 speakers instead, I have a couple of computer speakers, that are USB powered and I have a bluetooth stereo headset that come apart. I plan to interface it to the speakers amplifiers. Then it is a matter to convert the voltages from the batteries down to what the bluetooth board needs needs, and discard its old batteries which I think are I have a couple of other ones. All USB powered, So then just a matter of installing all the electronics, batteries. I will also post images of the final creation. It Ho etc. Am not sure wh

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