DIY Bluetooth Speaker Kit

Name: DIY Bluetooth Speaker Kit
Brand: The Science Hut
SKU: 1005004486364096-black-CHINA
Price: 32.95 USD
Availability:  InStock

$32.95

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Build your own Bluetooth speaker...

And learn how electronics, sound, and wireless tech work along the way!

Looking for the ideal gift? The Bluetooth Speaker Kit is a hands-on audio project designed for people of all ages with a love for wireless sound technology and DIY electronics. With this STEM kit, you’ll build a fully functional Bluetooth speaker from scratch—complete with stereo sound, LED visual effects, and wireless playback. It’s a rewarding way to explore how circuits, sound systems, and Bluetooth technology come together in real devices. After having the pleasure of building it, you'll have a stylish wireless speaker to stream your tunes — and you can amaze your friends when you tell them you built it yourself!

Whether you're a teenager exploring DIY tech, an adult electronics hobbyist, or just looking for a unique and cool gift that combines entertainment with learning, this kit delivers. It’s a perfect mix of engineering, DIY electronics, and music—all in one package. Refer to the sections below for further product information.

What's Included?

Includes all components required to build your own bluetooth speaker:

Bluetooth module (pre-soldered for easy assembly)
2x 3W full-range speakers
Light board Printed Circuit Board (PCB)
CD4017 decade counter IC
Resistors:
- 1.5 MΩ
- 10 kΩ
- 20 kΩ
- 470 Ω
Capacitors:
- 1 µF 50V
- 2.2 µF 50V
- 100 µF 16V
- 2x 470 µF 16V
S9018 transistor
3 mm blue LEDs (x10)
Potentiometer
Rocker switch
Remote control (battery included)
Microphone
Terminal connectors and wiring
USB terminal cable
Acrylic case and hardware (6-piece, 3 mm thick panels)

Refer to product image gallery for pictures of all components.

Learning Outcomes and Benefits

Electronics & Circuit Design: Learn how to read circuit diagrams and connect real electronic components including resistors, capacitors, transistors, LEDs, and integrated circuits.

Soldering Skills: Gain experience in careful, precise soldering—an essential hands-on skill for working with electronics.

Acoustics & Audio Engineering: Understand how speakers produce sound and how speaker housing and placement affect resonance and sound clarity.

Wireless Communication (Bluetooth): Explore how Bluetooth modules transmit and receive audio data wirelessly and how these systems are used in everyday electronics.

LED Sync and Beat Detection: See how visual effects (LEDs) can be programmed to react to audio signals, combining sound with light in a responsive display.

Troubleshooting and Logic Thinking: Learn to identify and resolve common electrical or mechanical assembly problems, sharpening your problem-solving mindset.

STEM in Action: This project offers a full cycle—from hands-on construction and theory application to final testing and real-world use.

Frequently Asked Questions (FAQ)

Q: Is it suitable as a gift?
A: Definitely. It’s a thoughtful gift for teenagers, adults, or anyone interested in building tech and understanding how wireless devices work.

Q: Is the Bluetooth circuit hard to assemble?
A: The Bluetooth module comes pre-soldered to simplify the build, making the project accessible for intermediate skill levels. Kids can build it with a little help from a grown-up.

Q: How do you control the speaker?
A: The remote control can be used to adjust volume, pause, play, skip, etc. The device you're using to play the music (e.g.: a phone) also offers the full suite of playback controls.

Q: Does it only play music through Bluetooth?
A: No, you can also play music directly from a USB key—there's a USB port on the speaker. A small 32GB USB key can store more than 5,000 songs!

Q: Do you need a paid subscription to Spotify or any other streaming service to use the speaker?
A: No, the speaker will play any audio from your phone/device including music videos you play on Youtube, music played from radio apps, or music files saved on your phone/device—basically, if it plays on your phone/device, it can be transmitted to your bluetooth speaker.

Q: What is the sound quality like?
A: The sound quality the speaker produces is excellent for a speaker of this size. The kit comes with two large capacitors that can be included during the assembly (if desired) to increase the base output of the speaker, giving you control over the final sound quality. The speaker is loud enough to entertain guests during 'nights-in'.

Q: What type of audio files can be played on the speaker?
A: The speaker supports all common audio formats including MP3, WMA, WAV, and FLAC. For best compatibility, we recommend using MP3 files encoded at 128 to 320 kbps.

Q: Do I need any special tools to build it?
A: Yes, you’ll need a soldering iron, wire cutters/strippers, and a small screwdriver. We sell all tools required, refer to the section on tools below.

Q: Can I play music from my phone or tablet?
A: Yes! This kit features Bluetooth connectivity, allowing you to stream music from any Bluetooth-enabled device.

Q: What powers the speaker?
A: It runs off a 3.7V–5V DC supply using the included USB cable. Tech-savvy or adventurous electronics enthusiasts can modify the speaker to run on an internal rechargeable battery (not included)—our Technical team will be happy to provide guidance.

Product Specifications

Dimensions (approx., when completed)

Length: 10.4 cm
Height: 5.7 cm
Depth: 6.6 cm

Output Power: 3W + 3W stereo
Channels: 2
Supply Voltage: DC 3.7V–5.5V
Current Draw: 1.5A–2A
Connectivity: Bluetooth and USB
Control: Remote and device control
Casing: 3 mm glossy black acrylic
Audio Input: Bluetooth streaming or USB
Visual: 10x Blue LEDs with beat sync
Microphone: Yes (for LED effects)

Assembly and Usage Info

Anyone can build this Bluetooth Speaker Electronics kit following our detailed step-by-step instruction manual which can be downloaded from the link below. The password to open the manual was sent to the same email that you placed your order from. Can't find it? Just Contact Us!

Download: Bluetooth Speaker Kit Instruction Manual

Skill Level: Intermediate
Age Rating: 12+ (adult supervision recommended for younger builders)
Assembly Time: Typically 2–4 hours
Power Source: USB, DC 3.7-5.5V. Power can be supplied using a phone charger, USB port on a PC/Laptop, Powerbank, etc.

Tools and Materials Required

We sell all tools required for your electronics projects at low prices. You can view these on our Tools and Materials Collection page: click HERE to view (opens in a new tab). Of course, you only need to buy the tools once — you'll use them again and again for all your future electronics projects!

Essential Tools

These are the items you must have to assemble this kit.

Soldering iron
Solder wire
Safety glasses

We sell all three of these essential tools as a bundle which saves 10 percent! Click here to view: Essential Tools Bundle (note: items are also available separately).

Other Tools (not essential)

These tools are useful, but not essential—you can assemble the kit using just the safety glasses, soldering iron and solder wire detailed above. You'll also need a small screwdriver which you may already have at home—if not, we also sell them on our Tools and Materials Collection page.

Wire snips
Tweezers
Small Phillips screwdriver
Desoldering pump

We sell all 7 of the tools detailed above as a bundle which saves 12 percent—a great investment if you plan to do DIY electronics regularly. Click here to view: Advanced Tools Bundle

For those who are really serious about starting an enjoyable and rewarding DIY electronics hobby, check out our Ultimate Tools Bundle (opens in a new tab) which includes a multimeter and 'helping hands' tool in addition to the 7 tools detailed above. This bundle saves a whopping 15 percent (when compared to purchasing each of the items individually).

Links and References

Our blogs & videos related to electronics kits:

Ultimate Guide to Electronics Kits

STEM Electronics as a Hobby

Youtube video: Tools, tips and tricks for soldering electronics kits

Shipping and Warranty Info

Shipping Information

Orders are processed and dispatched within 1–2 business days. Typical delivery times for this product, depending on region are:

EU: 7-14 days
UK: 5-12 days
US / Canada: 6-11 days
Australia: 7-14 days

All orders are shipped with tracking, where available. Please refer to our Shipping Policy page for further detail.

Warranty & Satisfaction Guarantee

All electronics kits come with a 14-day satisfaction guarantee. If you're not happy with your purchase, contact us and we’ll arrange a refund or replacement — no hassle. Please note that to qualify for a replacement or refund, kits must be in their original, unused condition. Please refer to our Returns and Refunds policy for more information.

Packaging

We aim to minimize waste while protecting your order. All electronic kits are securely packaged in padded mailing bags containing anti-static ESD bags and/or rigid plastic boxes (depending on the product) to ensure the safety of the electronic components. An example of electronics kit packaging can be viewed HERE. If you're purchasing this item as a gift and would rather that it was in a box, we also sell quality gift boxes at the following link: Quality Gift boxes.

Ships from: International Warehouse

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Kept the hubby quiet

Brilliant service, I had issues at the start, of my own doing, but staff were wonderful and helped straight away, and as a bonus, hubby loved it!
Highly recommend

Hello Tracy, thank you very much for taking the time to leave this review, we really appreciate it. We're always happy to be of service anywhere we can and we're delighted to hear you were able to get around the issues and that your hubby was pleased with the speaker.

Interesting concept

Basically all you are building is the flashing light assembly and then putting the box together. Although this is an intermediate kit there are no instructions on how to get everything into said box. Also it was more luck than judgement that I found that the black gloss finish to the box was hidden under a protective self adhesive veneer like material. The sound the box creates is on the tinny side compared to my other Bluetooth speaker but is reasonably powerful. As others have mentioned some instructions would be very helpful. Unfortunately my experience has put me off from trying other kits.

Thank you for taking the time to leave such a detailed and fair review—we truly appreciate it. Our technical team recently created a comprehensive instruction manual for this kit, which you can find via a link on the product page above, under the section titled Further Product Information.

Although you've already completed building your kit, the manual might still be helpful. It includes instructions for modifying the speaker to enhance bass output, which could address the tinniness you mentioned.

If you're interested in exploring other kits but have hesitated due to concerns about instructions, we’re pleased to share that we now automatically send instruction manuals to customers immediately after purchase. Additionally, our technical team is always available to provide extra support if needed—just reach out to us at info@thesciencehut.com.

Thanks again for your feedback!

Electronics are good but box assembly is a guess!

Great little project, excellent kit in itself, 2nd kit I’ve done just to improve my soldering really.

The only issue I have is trying to figure out how to assemble the box and the pubs inside, either I’ve missed the boat or there’s something I just can’t figure .

Hi Max, thanks for your purchase and thank you for taking the time to leave these review, we really appreciate it. Glad these kits are helping you to practise and improve your soldering skills. The box can indeed be challenging to assemble, and this one is particularly tricky since it's larger than most. You need to carefully align the tongues on the edges of each side panel so that they interlock, the when everything is aligned, the top panel is place in position (again, making sure to align and interlock with the other panels), then the two bolts that go down trhough the top tighten everything up and hold the whole thing together. So, all the panels are essentially loose and need to be held in place until the top panel is added and the bolts tightened... this can be tedious, trying to hold so many pieces at the same time, while also trying to screw in bolts. If it's proving too difficult, see if you can ask someone to help to align the panels with you and hold them in place while you apply the bolts through the top.

Blue tooth speaker

Great little project to build. I enjoyed building it👌🏻.

Hi Jack, thanks so much for taking the time to leave a review, it's very much appreciated. Great to see it side-by-side with the FM radio kit that you also ordered from us previously... nice that these kits in particular produce something to entertain you after the effort that goes into building them :) Thanks a lot for your repeat orders!

Good Electronics Project

Good quality components, well packaged. Easy enough to solder, all through-hole components, no SMD's. Surprisingly good sound and excellent bluetooth connectivity.