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ZK-HT21 TDA7498E Bluetooth Amplifier Board 160W2+220W Subwoofer 2.1 Channel Audio Receiver Power Amplifier Module with Treble and Bass Control for DIY Speakers3-in-1 multi-function input: This power amplifier board integrates AUX, Bluetooth and USB input methods, allowing you to connect a variety of audio sources as you like. What's more convenient is that you can easily switch between inputKey features- 3-in-1 multi-function input: This power amplifier board integrates AUX, Bluetooth and USB input methods, allowing you to connect a variety of audio sources as- Powerful sound field experience: integrated TDA7498E power amplifier chip, supports 2.1 channel configuration, including left channel, right channel and- Wide power supply adaptation range: The power amplifier board is suitable for DC15~36V power supply, and also has undervoltage protection function when it is- Compatible with a variety of speakers: the board is suitable for 30-200W, 4-8 speakers, so it can perfectly match with speakers of various specifications.- Perfect protection mechanism: Our power amplifier board has built-in comprehensive protection mechanism, including anti-reverse polarity, undervoltage,Benefits- Helps you get more done with consistent performance- Built to handle everyday use with confidence- Simple to integrate into your home or workspace- Designed to reduce hassle with straightforward operation- A dependable choice for long-term valueProduct detailsZK-HT21 TDA7498E Bluetooth Amplifier Board 160W2+220W Subwoofer 2.1 Channel Audio Receiver Power Amplifier Module with Treble and Bass Control for DIY Speakers is built with a focus on practical design, stable performance, and reliable materials. It is engineered to support consistent results across common use cases, with thoughtful construction for durability. Use it as intended and follow basic care to keep performance strong over time.How to use- Unbox the product and check all included parts.- Follow the quick setup steps in the manual or app.- Connect power or pair the device as required.- Test basic operation and adjust settings to your preference.- Use regularly and keep it clean for best results.Ready to buyAdd ZK-HT21 TDA7498E Bluetooth Amplifier Board 160W2+220W Subwoofer 2.1 Channel Audio Receiver Power Amplifier Module with Treble and Bass Control for DIY Speakers to your cart today and enjoy dependable quality, easy setup, and everyday performance you can trust.