Product selling point: 1. Can drag 0.5W-10W speaker DC3-12V audio amplifier 2. The smallest mini amplifier board 3. Beautiful appearance, easy to use 4. Adjustable volume 5. Using high-quality materials, the quality is guaranteedProduct parameters: Model: LM386 Power supply DC power supply: 3-12V Output power: 0.5-12W Power indicator: yes Audio input: 3.5MM Volume adjustment: yesPackage Included: 1* Mini amplifier board