anicorn 2PCS ZK-TB21 Bluetooth Amplifier Board,Bluetooth5.1 TPA3116 Chip with Subwoofer 2.1 Channel 50W×2+100W, DC 12-24V Bluetooth and AUX Inputs,Stereo Digital AMP for DIY Home Speakers

ZK-TB21adopts TPA3116D2 (with am interference suppression function) chips, with excellent sound quality; The ZK-TB21 supports Bluetooth and AUX inputs, compatible with most devices such as smartphones, TVs, and laptops, allowing you to connect easily; ZK-TB21 amplifier board supports a wide input voltage range from 12V to 24V DC, and can be powered by 12V, 15V, 18V, or 24V The board is suitable for 30-200W, 4-8 speakers, and can be perfectly matched with speakers of all sizes. Whether it is a small speaker or a large audio equipment, it can be coordinated with the amplifier board.

; 2.1 channel amplifier: 50W+50W+100W Bluetooth 5.0 wireless connection, Bluetooth+AUX audio input, 2.1 channel stereo output, just a little sound distortion; The amplifier bluetooth is designed with over-voltage protection, under-voltage protection, over-heat protection, short-circuit protection, with case to protective it;
Small size: 4.72 in* 3.94 in* 0.7 in; The mini amplificador with independent treble and bass adjustment buttons, you can directly adjust the treble and bass through the module, without using the player or speaker; This 200W dual-channel bluetooth audio amplifier board is widely use indoor and outdoor, such as family, party, bar, band, concert, carnival etc