Onboard 10K potentiometer provides adjustable volume control for the amplification stage, enabling you to set the desired output level. Onboard speaker terminal block offers convenient and secure connections to your speaker. Mono 18W output into a 4 ohm load (RL 4 ohm) provides clear, singlechannel amplification suitable for compact speaker setups. Mono power amplifier circuit design driven by the TDA2030A audio power amplifier chip for reliable performance and consistent audio amplification. Builtin TDA2030A chip ensures a proven, widely supported solution for audio amplification in a compact module. Applications and use scenarios: DIY bookshelf or compact speaker projects where a simple, integrated mono amp is desired. Small public address or announcement speakers requiring a singlechannel amplifier with adjustable volume. Educational or hobby projects to learn and demonstrate mono amplification using the TDA2030A chip. Key attributes: Function: provides mono amplification with adjustable volume and straightforward speaker connections. Compatibility: designed to drive a 4 ohm load; suitable for singlechannel speaker applications. Size and integration: integrated board with a speaker terminal block and a 10K volume control for easy assembly. Performance: 18W output into 4 ohms, using the TDA2030A for reliable audio power amplification.