Quality Assurance: Manufactured with precision, the MT21 amplifier board is built to deliver superior audio performance. This product adheres to stringent quality controls to ensure reliability and durability in every unit. Advanced Bluetooth 5.0 Technology: Equipped with the latest Bluetooth 5.0, this amplifier board offers a stable and seamless connection to your audio devices. Enjoy a flawless wireless streaming experience without the hassle of cables. Powerful Audio Output: With a configuration of 50W*2 + 100W power, this amplifier board is capable of driving high-power subwoofers and stereo speakers. Experience deep bass and clear, rich sounds that enhance any audio setup. Versatile Input Options: The ZK-MT21 supports multiple input sources including AUX. This feature allows for easy connection to various audio devices, making it a flexible solution for all your sound amplification needs. Safe and Eco-friendly: This amplifier board is designed without the use of high-concern chemicals, making it safer for the environment and users. Description/Features: Upgrade your audio experience with our Bluetooth Audio Power Amplifier Module, perfect for replacing units or enhancing your system. This 2.1 channel amplifier offers easy installation and user-friendly operation. Enjoy stable and quick Bluetooth connectivity along with versatile input options including Bluetooth and AUX. Tailor your audio with adjustable frequency, volume, treble, and bass to meet your diverse sound needs. Specifications: Material: Electronic components Color: Black Bluetooth Version: 5.0 Audio Input: AUX, Bluetooth Channels: 2.1 Power Supply: DC12-24V / 5A Speaker Compatibility: 20-100W, 4-8Ω Output Power: Max 50W (right and left channels), Max 100W (subwoofer) Note: Color may vary sl