Marshall and Bose subwoofers are among the most desired, blending design with sonic depth. They can be the heart of any surround sound system, especially for all those seeking that theatre-like feel. Powered on, a red LED aligns with the Bluetooth button as well as a 5-section battery indicator https://www.bluetoothspeaker.top/excellent-sound-waterproof-party-music-player-portable-wireless-bluetooth-speakers/