LED noise activated detector DIY electronic kit

This listing is for a noise detector DIY electronic kit. After you put the kit together, apply 4-8v (ideally 5v), and you're ready to go! When there is a noise in the surrounding area, the kit detects it and the on-board 7x red LEDs light up for the duration of the sound. For instance, if you clap, you will see the LEDs light up quickly, then power down again. If you start singing, the LEDs light up almost in squence of your voice. A really fun little kit.

The kit comes with:
1) The parts required for the build.
2) The custom printed circuit board
3) A schematic diagram that also includes a part list.

There are some instructions as well, but they are in chinese. If you can read PCB fot prints, and schematics, you're not going to have any problem putting this kit together. There are 17 parts, including the PCB. It took me about 20 minutes to put the kit together. I don't have any design notes, as this is a good quality kit.