The module described is designed for signal amplification, whether it be audio or another type of signal. It is built around the versatile LM386 chipset, offering the capability to achieve a 20x gain in amplification. The module includes an onboard potentiometer, providing users with the flexibility to adjust the gain according to their specific requirements. This feature allows for easy customization and adaptation to different signal strength or sensitivity needs.  ** The images shows are for representation only and actual product may slight differ in color and appearance.