High-Performance Amplifier: Experience superior sound quality with our TPA3116 Digital Power Amplifier Board, featuring a 2.1 channel setup with dual 50W and a single 100W outputs, ensuring powerful and clear audio reproduction. Versatile Voltage Compatibility: This amplifier is designed to operate efficiently across a wide voltage range from 8V to 24V DC, making it suitable for various audio setups and applications. and Reliable: Built with good-quality components, the Gold-528BHV model promises durability and reliability for long-term use, enhancing your audio system's performance. Color: Black Material: Plastic+Metal Package Contents: 1 * Bluetooth digital 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.