Enhanced Audio Performance: Experience superior sound quality with our 2.1 channel Bluetooth 5.0 amplifier board, designed to deliver a powerful 50W x 2 + 100W output. Perfect for audiophiles seeking robust audio amplification. Versatile Connectivity: Equipped with Bluetooth 5.0 and AUX input, this amplifier board offers flexible connectivity options, allowing you to stream audio seamlessly from devices. Compact and : Built with high-quality materials, this stereo amplifier board is both compact and , ensuring long-lasting performance for all your audio needs. Tips: Only when the audio input is sufficient and the power supply voltage/current is sufficient, there be sufficient output power! The higher the power supply voltage, the greater the output power, and the smaller the speaker impedance, the greater the output power! Please make sure that the power of the adapter power is the actual working power of the amplifier! Product name: 2.1 channel Bluetooth audio amplifier module Product model: -MT21 Bluetooth version: 5.0 (unobstructed, 15 meters) Input sensitivity: 500mV Input method: AUX+Bluetooth Number of channels: 2.1 channels Applicable speakers: 20-100W, 4-8 Protection mechanism: anti-reverse connection, overheating, overcurrent, short circuit protection Applicable power supply: DC12-24V/5A or above (cannot be connected to 24V battery pack) Output power: left and right channels Less than 50W, subwoofer Less than 100W Colour:As Shown Material:Metal Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Package Contents: 1 * Amplifier Board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.