Experience immersive sound like never before with the Harman Kardon Onyx Studio 9 Bluetooth speaker. It ensures crystal-clear vocals, bright highs, and deep bass that elevate every song. Constant Sound Field technology expands the soundstage, improving clarity and detail. With eight hours of battery life and a built-in USB port for recharging, it keeps the music going. | Harman Kardon Onyx Studio 9 Bluetooth Wireless Speaker - Grey