Electronics kit that teaches soldering while producing a working Bluetooth/FM speaker. Hands-on assembly delivers the satisfaction of building a tangible audio project and learning practical electronics skills. Is KoolShiro Soldering Practice Kit the right step for newcomers who want a playable speaker and genuine soldering practice?
⚡ At a Glance
- • Sound Signature: Versatile playback via Bluetooth, AUX, USB and SD, plus FM radio (87–108MHz)
- • Best for: Beginners learning soldering, electronics students and hobbyist makers seeking a functional project
- • Not ideal for: People who need out-of-the-box, factory-finished speakers or high-fidelity audio equipment
Multifunctional DIY speaker kit supports Bluetooth streaming, aux input, USB/SD playback and FM radio. Transparent acrylic case, LED strobes, digital display and a pre-soldered Bluetooth module simplify assembly and visual feedback.
Multiple playback options - thanks to Bluetooth, AUX, USB and SD support
Bluetooth receiver enables wireless streaming from a mobile device, while the AUX input accepts analogue sources. USB and SD slots read files from external storage for local playback.
Flexible listening choices let users play streamed or stored music during and after assembly, making the project rewarding and immediately usable.
Stable radio tuning - with FM auto-scan and power-off memory
Auto-scan searches the 87–108MHz FM band and stores available stations automatically. Power-off memory saves the current channel so playback resumes on restart without manual retuning.
Quick station setup and reliable resumption of the last station save time and make radio use straightforward in everyday settings.
Practical soldering practice - with pre-soldered module and solder-up components
Bluetooth speaker module board arrives pre-soldered, while the LED flashing light kit and wire connections require manual soldering and final assembly of the acrylic casing.
Beginners build confidence through guided, hands-on soldering tasks and finish with a working audio unit that demonstrates core electronics principles.
✨ The 4 Key Reasons for KoolShiro Soldering Practice Kit
- Digital display – Clear readout of mode, volume and radio frequency instantly.
- Remote control – Adjust volume, change modes and select channels from distance.
- LED strobes – Lights pulse in time with music for lively visual feedback.
- Pre-soldered Bluetooth module – Simplifies assembly so beginners finish functional projects quicker.
📋 Technical Details at a Glance
- Display: Digital display shows playback mode, volume and radio frequency
- Processor: Not specified
- RAM: Not specified
- Storage: Supports USB storage devices and SD cards for local playback
- Camera(s): Not applicable
❓ Frequently Asked Questions
Q: Is this kit suitable for absolute beginners?
A: Suitable for beginners who already have a basic understanding of electronics and some soldering ability; the kit is designed to teach soldering through hands-on practice while producing a working speaker.
Q: Does the radio remember the last station after switching off?
A: Yes, power-off memory stores the current FM channel so playback resumes on the same station when restarted.
Q: Which playback methods are supported?
A: Bluetooth streaming, AUX analogue input, USB storage and SD card playback are supported, alongside FM radio.
🏆 Our Verdict
Perfect for beginners, students and hobbyists who want practical soldering experience combined with a usable audio project. The main selling point is hands-on learning that results in a working Bluetooth/FM speaker with visual LED feedback. Strong educational value and durable acrylic construction make the kit a rewarding long-term project for makers.
