The Harman Kardon ENCHANT SUB Wireless Active Subwoofer in Black is a sleek and powerful addition to your home audio system. With a 10-inch driver size and THX surround sound formats, this subwoofer delivers an immersive listening experience. It is compatible with Harman Kardon Soundbar Series 800/1300, featuring wireless connectivity options like Bluetooth and Wi-Fi for a seamless integration with your smart home devices like Alexa, Google Assistant, Siri, and Cortana. The rectangular shape and all-in-one design make it a stylish and convenient choice for enhancing your home audio setup.