ZK-ST21 Bluetooth Digital Amplifier Board – 2.1 Channel 100W + 100W + 200W Subwoofer (TPA3221)

Power your audio setup in Bangladesh with the ZK-ST21 Bluetooth Digital Amplifier Board featuring dual TI TPA3221 chips for 100 W per stereo channel and 200 W for subwoofer. Supports Bluetooth, AUX, USB, sound-card inputs. Delivers high-fidelity sound, low distortion, efficient Class-D performance, and built-in protection against overload, over-temperature, reverse polarity, and short-circuit.