🎶 Amplify Your Sound, Minimize Your Space! Easily connect to your devices without hassle. Experience booming sound in a mini package! No manual needed—just plug and play! Works with both passive and active speakers. Seamlessly switch between USB, AUX, and Bluetooth. USB/AUX/Bluetooth 50W+50W Power 5-24V Input The DollaTek ZK-502M is a compact Bluetooth digital amplifier module that delivers an impressive 50W+50W output power. With a wide voltage input range of 5-24V, it offers versatile connectivity options including USB, AUX, and Bluetooth, making it easy to connect to various devices. Its user-friendly design features printed connection icons for effortless setup, ensuring you can enjoy high-quality audio without the need for a manual.