ARRAROWN Bluetooth 5.0 Audio Amplifier Board, ZK-MT21 2.1 Channel 50W X 2 +100W Mini Subwoofer Power Amp HiFi Digital Audio Amp Module for Home Speakers (20-100W, 4-8), DC 12-24V, BT AUX Input

Features

• Subwoofer Audio Amplifier Board: This ZK-MT21 with two powerful hifi audiochip drive, 4 low noise preamplifiers, and a large-capacity energy storage capacitor, just a little sound distortion. 2.1 channel 50W * 2 +100W stereo and subwoofer output, In addition, it comes with an antenna holder solder joint for external antenna connection (antenna not included in the package)
• Bluetooth 5.0 AUX INPUT, This MT21 is designed with 2 types of inputs: Bluetooth 5.0 wireless connection, and its transmission distance can reach 49 feet (without obstruction), and 3.5mm AUX audio input, Note: When using AUX mode, please confirm that the Bluetooth connection of this module has been disconnected
• Treble and Bass Adjustment: This digital Amp board with independent treble and bass adjustment buttons,you can directly adjust the treble and bass through the module, By adjusting the high and low frequency knobs of ZK-MT21, you can make the sound more layered and make the bass more shocking, and the treble more clear, enjoy the HiFi sound quality
• With Protective Function: This MT21 Bluetooth amp module is designed with over-voltage protection, under-voltage protection, over-heat protection, short-circuit protection, with case to protective it
• Mini Size and Easy Installation: The illustration of each interface is printed on the protective plate, making it easy to install and use even without instructions. Small size: 3.74 in*3.54 in*0.87 in, easy to carry, suitable home, car, bar,party and outdoor