DIY Bluetooth Speaker

Picture of DIY Bluetooth Speaker
Meet the PartyBar™! Make a wireless speaker, loud enough to fill an entire room! With a budget less than $15, you can have your own Bluetooth speakers made from scratch materials! It's slick, stylish, descent and most of all it's compact and fits in your pocket. This is a great weekend projects for enthusiasts and audiophiles.

It's small but packs quite a punch. With the help of "35mm Neodymium Drivers" the PartyBar™ delivers a solid stereo sound. It's equipped with a 1000mAh Li-ion battery meant to last for 9 straight hours, replacing it with a 2,400 LiPo will result to a staggering 22 hours of continuous playback!

Are those ready made speakers?
A lot of people thought that this was a ready made product, well it's not. It's actually made from recycled materials such as broken speakers, radios & old modules. The project box came from my eyeglass's container :D

Techie Description:
The PartyBar™ is equipped with two outstanding Neodymium Speaker drivers. Neodymium itself is a rare-earth metal. Magnets made from neodymium are light and very powerful, making the speakers more compact and gives a higher clarity rate.

Of course good speakers must be powered by good amplifiers thanks to Nsiway's NS4263 dual 3W SMD chip, the PartyBar™ delivers an excellent audio, good enough to compete in today's market. It has a class AB amplifier with a THD rating of 0.1%. A Class AB amplifier delivers fully symmetrical wave amplification, in short the audio given off by this amplifier is pure and clear.


- 1,000 mAh Rechargeable Li-ion Battery (9hrs Playback)
- Dual 3W (4ohms) 35mm Neodymium Drivers
- High Efficiency 2x3W Amplifier (0.1%THD)
- 15 meter Standard Bluetooth Range
- 3.5mm Auxiliary Ready
- Mini USB Charge Plug

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andrea biffi3 months ago

great idea using a glasses container!

chris23922 months ago

Hello, Great Idea!! i would like to turn an old pair of speakers that im rather attached to into bluetooth speakers. i did do eletrical engineering at college so i should know how to solder still but im afraid im totally lost when it comes to wiring up speakers, i think i will buy exactly the same boards and speakers as you. would you be able to go into more detail on where to solder the wires to which bits of the boards please? thank you for your time, Chris

ASCAS (author)  chris23922 months ago

Wait for my next speaker build. I'll show a much better board combo.

Any idea when this will be available. Considering building this for a school project but need the wiring instructions. Thanks!

Hyginx12 days ago

What capaciters are you using and where do they go? Also, what adaptations would i need to make for 2 100W 4 ohm speaker?

tekletowner14 days ago

If ANYONE has SUCCESSFULLY made this speaker based off instructions, please PM me. Having a bit of issues.

ASCAS (author)  Minitothemax1 month ago

Yup, but you would need a 14v battery for your amp.


if you use this bt module, can you pair two speakers at a time?

if not, what will it need to do so?

Thanks for the fast answer i really like your speakers.

easy but good i made in just 2 hours. I painted metallic gray looks awsome
ASCAS (author)  Andrew Garfield16 days ago


iaurelius16 days ago
I am interested in knowing more about the battery chraging module. (I am new to ATTEMPTING to design my own portable bluetooth speaker.). I took apart one speaker I purchased late last year, but given its low output, I aim to build one using a 20w module. Where can I buy a battery charging module? I would be more interested in purchasing a class d amp module that already includes the battery charging module..perhaps bluetooth as well, not unlike what OEMs design and use in their portable speakers, though I have not found one which includes everything (excluding the battery and speakers). Any thoughts?
ivmilicevic23 days ago
How did you connected battery to charging module? Is it soldered?
ASCAS (author)  ivmilicevic23 days ago

Yes it is soldered.

Is there some special procedure? Or just like soldering two wires together?
booeyoh2 months ago

I saw in the pictures capacitors attached to the amplifier, but I don't see anything about those in the parts list or instructions. I am not even to novice level, but I am inclined enough to make my parts look like the parts in the picture. So my speaker works (albeit in a tupperware conainter for now), but it would seem that the missing capacitors need to be added, can you let me know what I should add there?

2014-01-25 23.03.34 (2).jpg2014-01-25 21.36.22.jpg
ianni booeyoh23 days ago

I hope the response did not confuse you more and you find that info useful.
Have fun!

ianni booeyoh23 days ago

Lower frequencies in playback draw more power from the amplifier so bass could be attenuated due to voltage drops. That capacitor is added to assure the extra juice lower frequencies need. I don't think that is necessary because you could easily put the battery with short wires, close to the amp and the amp already has 2*47uF tantalum capacitor (which is more than enough).

But, if you want to be sure you could put the extra capacitor between the + and - of the amplifier board (on the pins of the board where you connected the battery wires).

If you want to go deeper you could check the datasheet and you can see that pins 2(L), 15(R) of the PAM8403 are GND pins and 4(L), 13(R) are VDD (+) pins. The best way to connect the capacitors are as close as possible to the power pins (GND and VDD) as are those already on the board (see the picture).

Also you should have in mind low ESR capacitors (don't put the cheapest you can find) because they consume precious power - after all it's a portable device and you should be power effective. Another suggestion is not to exceed 200uF (or this case 100uF on each side) because the bigger the capacitor, the bigger the power draw at startup, and also voltage fluctuations. As the initial power draw increases the battery life shortens a lot.

In my opinion if you really want to add the extra capacitor is to find another pair of tantalum capacitors (THD or SMD) of about the same capacitance and solder them on top of the other ones marked in the picture. Tantalum have really low ESR, lower leakage, etc so are better for this situation.


hi, nice instructable!

just one question, is the bt module mono or stereo???

rudrasinh1 month ago
ASCAS can you tell me how to make a aux Bluetooth adapter.
713900MIKE1 month ago

and sunglasses container could probably be a good housing too. Those sure easily obtained as well.

mrkii1 month ago

Hello, Great Idea

How has connect Bluetooth in step 6 ?

ASCAS (author) 2 months ago
NEU2 months ago

can you please tell me , where to buy all those parts ?


tekletowner2 months ago


I got all the parts, but need help with exact details for putting together. I love the details you have here, but as a first timer, i need more help. lol Can you PM me with help on some clarifications?

This Instructable popped up in my email before Christmas. Everyone was either buying or getting a Bluetooth speaker. I wanted one, but I refused to pay $100+ for one. I thought the Party Bar was my answer, and I ordered the parts. It took FOREVER for them to get here. Really, it was about 4 weeks, I think.

Anyway, I finally set to building yesterday, and I sit here this morning feeling defeated for a couple reasons:

#1 I can follow directions, but the wiring diagram and instructions are essentially useless without prior electronics knowledge.

#2 My Bluetooth module is pretty much destroyed from where I tried to remove the USB plug.

I desoldered it, and the whole thing then kinda just ripped off the PCB and I'm fairly certain it's useless...because I don't know what I'm doing. So here I have all of these parts and stuff which was A LOT more than $15 mind you, and now what?

Your Instructable is great because it inspired me with a ton of ideas, but you got lazy in the middle and didn't explain some steps well enough to complete the project. Namely the wiring. There are all kinds of places on some of these components to solder. Some of them are obvious like L and R, but others are obscure. So detailed images of how you soldered the parts together would have been so helpful. So, I don't know whether to thank you or really what to do. I'm definitely interested in your new speaker project, but I hope the instructions are more clear.

ASCAS (author)  waxingpoetic753 months ago

Sorry if this ible doesn't have clear instructions. I hope your modules are still working. Hang on for a while, I will be releasing another BT guide similar to PartyBar's build. We will still be using the same parts so there's no need for you to buy new parts.

Sakla ASCAS3 months ago

I have ordered and am waiting for the parts, but yes, that is the thing I am most concerned about is the wiring. I have a very (VERY) basic understanding of what I need to do -- but in your block diagram, you don't show how things are connected to the switch. I have an idea, but I am pretty nervous about experimenting with it. The switch is to enable charging, correct? It is not an "on/off" switch?

ASCAS (author)  Sakla2 months ago

Please wait for the release of the other tutorial. I promise that it would be more detailed and will show a more detailed wiring instruction.

The switch isn't for charging but for on/off

Sorry, didn't see you had already answered this question ASCAS. I will definitely give your other tutorials a look. Thanks for your responses. You are on to something, and people want to make your products!
The switch is to turn the speaker on and off. The unit should charge automatically when you plug it up via the charging module.
Thanks for the response! I really like your projects. It's not your fault I don't know jack about electronics. I hope you will give more detail on the wiring since that's where so many seem to get stumped.
FuzzyBearGeek3 months ago

My parts showed up! Whut Whut!!!
Now, after reading you're doing another one with the same parts, I'm not sure if I wanna follow this one or the new one! What's the new one going to entail? Excited!

ASCAS (author)  FuzzyBearGeek2 months ago

The new one will provide a much more detailed wiring instruction. I won't be using the old eyewear container. Instead, the enclosure will be made of acrylic, similar to AirJam's build (my other ible).

Excellent! I forgot to buy the charging module, so I'm going to just make something that can swap out various extra batteries from old phones. ReUse! ReCycle! You have a great brain!

metalix3 months ago
where is the supercharged
ASCAS (author)  metalix3 months ago
You have no idea, how close is the ible to getting published. Well here's the draft. The complete guide will be published tomorrow, in time for the hack it contest deadline.

DIY Supercharged Bluetooth Speaker (v2.0)

It's up! And wicked! You must have a fun day to day life. :D

hobbyman3 months ago

nice project, nice fabrication. I'll make one as soon as possible.


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