Review on 🔊 SMAKN High-Power 2-Channel 3W PAM8403 Audio Super Mini Digital Amplifier Board: Unleash Powerful Sound in a Compact Package by Kimberly Bryant

I made many headphone amplifiers out of it and put them in nanotube headphone and they will bang them on the headphone. You can use these mini amps for other projects and you might be amazed at how they sound even when hooked up to some small bookshelf speakers as the board is actually a quarter size or smaller. note if you use aux (female) x 2. 1 out / 1 in Note: You only need one ground for each connection. I used an old flip phone battery to power them very well.