The ZK-502H Power Amplifier Module offers a wide range of power voltage options, enabling you to customize your audio setup based on your preferences. From 12V to 24V, enjoy different power outputs tailored to your speaker's requirements for optimal performance. Elevate your audio system with this versatile and adaptable amplifier board Compact and lightweight, the ZK-502H Bluetooth-Compatible Amplifier Board is designed for convenience and portability without compromising on performance. With a sleek 60x60x29mm size and a weight of approximately 104g, this AMP TPA3116 is the perfect audio solution for your home, office, or on-the-go needs. Upgrade your sound system effortlessly.