LM386 Miniature Amplifier Board

The circuit board is made of FR4-A high-quality PCB processing, and through the tin-plating process, high quality and beautiful;
With volume knob, easy to adjust the volume.
Product name: LM386 amplifier module product size: 37mmX41mm; positioning hole size: 30 * 32mm: operating voltage: DC 5 ~ 12V; drive the speaker: 0.5W-10W speakers a

Wiring instructions.
Power: DC005 and next to the 2P pins for the power supply interface, 2 choose a use, look at the individual hand power interface which is convenient to connect to which voltage 3-12V, within the positive and negative; Audio Input: the board's 3.5MM audio seat and next to the pins for the audio input, according to the convenience of the individual 2 to choose one to connect to the speaker: 2P pins for the speaker interface, the speaker for the nonpolarity of the components, so feel free to connect to the speaker, the speaker will not burn out. Speaker will not burn out.

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Advantages.
1) fewer components, easy to weld debugging, you look at the following components.
2) simple wiring, wide range of power supply 3 to 12 can be, with a power indicator, power debugging is very convenient, with the store's USB to DC005 line can be powered from the computer power supply;
If the debugging time appears to be noisy, the volume is small, please check whether the input audio line ground is connected to the right.
3) sound quality and volume are good, cost-effective, drive 8W speaker volume is very large!