Onyehn 10pcs LM386 200 Times gain Audio Power Module for Arduino EK1236 (Amplifier Board Mono Power Amplifier 5V-12V 10K Adjustable)

I used them in a Halloween prop project. I'm using two speakers, each will has its own lm386 amplifier and 9volt battery. They are fed PWM audio output from a microcontroller. The lm386 breakout was purchased from Amazon, they were a bit over a buck each. As another reviewer said, you probably couldn't buy the components that cheap. I 'fried' the one pictured by accidentally touching the positive lead from the battery to the ground on the breakout. Be careful about polarity on this one, they are not forgiving. I considered trying to replace the SOIC lm386-1 chip on the one I fried, but I doubt I could get a replacement chip for less than the price of a whole new board. I didn't understand the reason for the two ground pins at first, thought it was silly. Until I realized that I was the silly (ignorant) one. The two ground pins very conveniently allow you to connect the ground planes from the power source and the audio source. They are actually pretty much essential. There is a bright LED on each board, I carefully scraped it off to save power. With the LED the lm386 was drawing about 9.7 milliamps when idle. With it removed that dropped off to 1.2 milliamps. That should be significant for life of a 9 volt battery. I prior had salvaged the speakers from an old itunes docking station. Recycling them here, they are working very well with the lm386. The output from the lm386 is just right as it is set and plenty loud (and still clear) from the speakers.

exactly as pictured, excellent product, it would have cost me more to build lm386 amp then the module cost, excellent value and fast delivery Would recommend this supplier. 5 stars

Two of them blew their LM386 ICs. Don't know why. Had some ICs on hand and replaced them. Working OK now. I use these on Crystal Sets I build for kids. Gives good volume with a four inch speaker. Worth the price. This is the first time I've hand any of these fail.

I build Blue tooth speaker and was tired of providing my own Amplifiers from other places like stereo's, radio's etc... These little amps are on board self explanatory connection makes and simple to use! I think they're GREAT FOR THE PRICE!

I've only tested a few. That being said they're excellent little boards for DIY and prototyping. No issues at all so far. They're obviously not for audio files but they definitely do the trick for fun little diy projects

My technician accidentally blew a small single line amp that was wired weird. This out of a week of research was one of the few that was qualified to replace it. Once we installed it we were able to get it functional by exact wiring. Thank you! Saved the job on a building in NYC on Park Avenue for such a simple product.

Used this model to create an amplifier for the headphones my wife uses for watching TV. Added a preamp mic and external gain control and a 9 volt battery. Happy wife, happy life!

Attempted 2 boards of 10, multiple sources (guitar, mic, phone) NO OUTPUT! Complete waste of time!