About This Product
This little kit from eMagTech is a fun way to learn soldering and basic electronics.
Each board measures just 3x2.

5cm and comes on a tough FR-4 glass fibre board that works with 3-5.

5V.

The idea is simple: the louder the sound, the brighter the LEDs flash – so when you put it near a stereo, the lights literally dance to the music.

It’s a great intro to how microphones work in classic sound-control circuits, and once you get the hang of it, you can design your own voice-activated gadgets.
It’s super beginner-friendly, so you can practice your soldering skills without feeling overwhelmed.
Each pack gives you two full kits, so you can build one, mess up, and still have a backup.

Perfect for hobbyists or students wanting hands-on electronics fun.

Circuit principle, the voice-activated LED melody light circuit consists of a power supply circuit, a simple text amplifier circuit, the louder the voice, the brighter the LED.
After this kit is powered on successfully, if you put it near the stereo, you can feel the melody of the sound combined with the flashing lights, making the lights dance with the music.

By learning the principles of this kit, you can learn about the classic application circuits for microphones and then design many other circuits and products with sound control functions yourself.
Soldering skills and basic circuit theory can be easily learned, after completing this principles practise,it provides extra motivation for learning electronics.
This soldering practice kit is very simple and good for beginners to practice soldering.
