Two Channel Sound Level Indicator Voice Control Audio Indicator Electronic DIY PCB Soldering Practice Kit

Feature: Input: 5V LED: 5mm RGB Weight: 23g Size: 100 x 50mm PCB: 1.6mm FR-4 Component Model Lable Quantity Resistance 1M R1, R2 2 680 R6, R7, R13, R14 4 10K R3-R5, R8 4 4.7K R9, R10 2 Diode 4148 D21, D22 2 Triode 8550 Q1, Q2 2 Electrolytic capacitor 10uF C1-C6 7 Adjustable resistance 10K RW1, RW2 2 Ceramic capacitor 104 C12 1 IC LM3915 U1, U2 2 LM358 U3 1 Touch Switch UW2 1 Toggle Switch SW3, SW4 2 PCB 100*50mm 1 LED RGB D1-D20 20 MIC MIC1, MIC2 2 Audio seat INPUT F1, F2 2 Power socket 3.5mm 5V GND 1 USB DC 1 Package includes: 1 x Sound Level Indicator Kit