12-24V 2.1 Channel Amp Board AUX Input Bluetooth Power Amplifier Module Treble and Bass Control for Electronics Hobbyists, Speaker Upgrade

This 2.1 channel amp board is a finished audio electronics module built around the TPA3116, designed for compact home stereo and DIY speaker projects. It can receive wireless audio via Bluetooth or wired signals via AUX and drive a 2.1 speaker setup. It has independent knobs for master volume, treble, left-right volume, bass frequency, and bass level. The onboard switch powers on into Bluetooth mode by default, and simple button control changes input mode or pauses playback. It includes short circuit protection and operates on a 12-24V supply.