DIY Kit C51 MCU Laser Harp, U$9.35
- Lots of fun to start a new DIY project with it. You can play the laser beam as a string. Each beam has a different pitch.
Audio Spectrum 8×8 Colorful Flashing Light DIY Kit, US$7.3
- RGB Level Indicator Voice Spectrum Lights with Acrylic Shell
Tips: Free shipping for order reached $20 usd.