Harman Kardon Onyx Studio 8 Speaker is a premium portable Bluetooth speaker that combines rich, room-filling sound and elegant design, delivering 50 W RMS output through a 120 mm woofer and dual tweeters with a 50 Hz–20 kHz frequency response, offering Bluetooth 5.2 wireless streaming with dual-device pairing, a built-in dual microphone for clear hands-free calls, up to 8 hours of battery life, and a sleek anodized-aluminum handle for easy portability. | Harman Kardon | | Onyx Studio 8 Speaker, Black | Best Buy