2.1-Channel Power Amplifier Board — Bluetooth 5.0, USB, Reverb Adjustment, Bass & Treble Control

2.1-channel power amplifier board with Bluetooth 5.0 and USB connectivity, designed for flexible tone and microphone management. Features include microphone squawk (feedback) suppression to prevent howling, separate adjustable controls for microphone volume and master volume, and support for reverb adjustment. The unit sports a high-end brushed aluminum alloy front panel and provides an analog interface for connecting a wireless microphone board. Bass effect adjustment and treble control are supported for fine audio tuning.