Connectivity and audio quality AUX and Bluetooth input provide flexible connection to devices such as phones, tablets, and laptops. Delivers HiFi fidelity and definition sound for clear, detailed playback. Protection and reliability Four protection mechanisms protect the system: antireverse connection, overheating, overcurrent, and short circuit protection. Helps prevent damage during use and ensures safer operation. Antenna and reception External antenna option available to potentially improve Bluetooth range and reception in larger spaces or challenging environments. Outputs and speaker integration Subwoofer output plus left and right channel outputs enable flexible speaker configuration and enhanced bass performance for a more immersive listening experience. Compatibility and performance Designed to work with both Bluetoothenabled devices and wired AUX sources, suitable for expanding or upgrading existing audio setups while maintaining reliable performance. Use scenarios Home music system upgrade: Pair a Bluetoothenabled smartphone or tablet and play fidelity music through a speaker system, with the option to add a subwoofer for deeper bass. TV or computer audio enhancement: Connect via AUX to improve TV or PC sound, using the stereo outputs for clear, immersive playback. Small home theater or multispeaker setup: Use the left/right outputs to drive additional speakers and the subwoofer, leveraging the external antenna option if longerrange Bluetooth connectivity is needed.