ZK‑502L Bluetooth Power Amplifier Board 5.0 Stereo Audio Receiver Channels Digit

[Strong Compatibility: The amplifier module is equipped with a terminal block and a DC 2.1mm socket which is compatible with most laptop power ports. Can directly connect to Bluetooth 5.0. and compatible with a variety of speakers. Two 20W 30W or 50W power amplifier boards are equipped with various speakers (4 to 8 Ω) and support Bluetooth stereo audio input and AUX audio input. Built-in Filter Capacitor: The built in filter capacitor of this digital power amplifier module makes it available for processing sound . Knob potentiometer design convenient to adjust power ON and OFF V+ and V‑. Adapted Power Supply Voltage: 5-24V (optional 9V/12V/15V18V/24V and Other Adapters High Power Recommended High Voltage). To Noise Ratio: >90 dB. Adapted Speakers: 30W-200 W 4Ω-8Ω. Mechanism: Adopt acrylic protective shell design with reverse connection overvoltage undervoltage over temperature short circuit . Self recovery overheating . Wide Range Of Applications: This bluetooth speaker power amplifier board has no sound when powering on skipping songs and pausing. It is widely used in refitting speakers power amplifier equipment and car Bluetooth equipment.]