This is the portable, rechargeable Bluetooth speaker that generates a realistic stage-like experience with 360° of sound while providing a synchronized lightshow. Built to resemble a vacuum tube with an upward design that provides three-dimensional sound regardless of listening position, its 3" full-range 8-watt speaker seamlessly reproduces the entire sound range without unnatural distortion. Its sealed plastic enclosure houses three glass faux vacuum tubes, allowing trapped air inside the plastic enclosure to act like a spring for clear, crisp sound. The LED's color temperature subtly synchronizes with music in as little as 0.004 seconds. Battery provides up to seven hours of play time from a 2 1/2-hour charge using its AC adapter. 7 1/2" H x 4" Diam. (2 1/4 lbs.)