Compact and versatile design Size: 41.00 x 14.00 x 14.00 mm (1.61 x 0.55 x 0.55 inch). This small mono amplifier board is easy to install in a wide range of setups, making it suitable for DIY projects or integrating into existing audio systems. Powerful amplification for clearer sound gain design: A 20x gain circuit delivers significant amplification of audio signals, enabling louder and clearer output for a more impactful listening experience. Onboard components for reliable performance LM386 chip integration: This digital mono amplifier module is equipped with the LM386 chip, renowned for its amplification capabilities and reliable performance, helping to ensure consistent sound amplification. Immersive audio with strong signal boost 20x gain circuitry: The module features a 20x gain circuit design that enhances the volume and intensity of the audio signal, providing a substantial boost to the audio output for a more immersive listening experience. Use scenarios DIY speaker projects: Integrate into a compact DIY speaker to achieve louder, clearer audio from a small enclosure. Embedded or microcontroller audio: Add an amplification stage to enhance audio output from microcontroller projects (for example, Arduino or Raspberry Pi based setups). Small home audio upgrades: Use as a dedicated mono amplification stage to improve sound in compact home audio or tabletop systems.