Description: Onboard LM386 chip 200 times gain circuit design Onboard speaker docking station Onboard 10K adjustable resistance, you can adjust the volume to enlarge Onboard power indicator Chip main pin has been led, you can directly enter the audio signal Working voltage: 5 ~ 12V Specification: Material: PCB Board Color: As picture show Size: Approx. 41x13mm/1.61x0.51inch Package Includes: 1 piece LM386 Audio Amplifier Board Note: Pls allow an error of 1-3mm due to the difference of manual measurement
