DAJUNGUO ZK-TB21 Power Amplifier Board Bluetooth5.1 TPA3116 Chip with Subwoofer 2.1 Channel 50W×2+100W, DC 12-24V Bluetooth and AUX Inputs

【TPA3116D2 CHIP】ZK-TB21 adopt TPA3116D2(with am interference suppression function) chips, with excellent sound quality. It ensures that even with high power operation for a long time, THD is less than 0.1%. 【Bluetooth 5.1+3.5MM AUX】The ZK-TB21 supports Bluetooth and AUX inputs, compatible with most devices such as smartphones, TVs, and laptops, allowing you to connect easily.. 【Bluetooth Antenna Base】The newly upgraded TB21 features the first-generation IPEX interface, allowing you to connect an external U.FL/IPEX 2.4G antenna to enhance the stability of the Bluetooth connection.. 【Protection Function】The ZK-TB21 Bluetooth power amplifier features multiple protection mechanisms, including short-circuit protection, over-current protection, over-heat protection, and anti-reverse protection, to ensure its safe operation.. 【7 * 24 Hours After-sales Service】 Paying Attention To Customer Experience And Satisfying Customers Is Our Service Tenet. If You Have Any Questions About The Product, or The Product Has Quality Problems, Please Contact Us At Any Time, We Will Give You a Satisfactory Answer