<div class="detailmodule_html"><div class="detail-desc-decorate-richtext"><strong><span style="font-size:20px">Product features:</span></strong><br/><br/><span style="font-size:18px">1. Onboard LM386 chip<br/><br/>2. Design of a 200x gain circuit<br/><br/>3. Onboard horn wiring socket<br/><br/>4. Onboard 10K adjustable resistor, capable of adjusting the volume of amplification<br/><br/>5. Onboard power indicator light<br/><br/>6. The main pins of the chip have been led out and can directly input audio signals<br/><br/>7. Working voltage: 5-12V<br/><br/>8. Board size 41 (mm) x 13 (mm)<br/><br/></span><br/></div></div><p><br/></p>