Rocksteady STADIUM 4 Speaker & Subwoofer Combo packs Big Speaker presence & clarity in a versatile wireless sound system, with 4 portable Bluetooth speakers and the world's first truly portable Bluetooth subwoofer. With a multi-driver setup, each speaker in the Rocksteady STADIUM sound system has a tweeter, mid-bass driver, and the set includes a powered subwoofer, resulting in rich, high-fidelity sound with clear strong bass. Once STADIUM Speaker or subwoofer is connected to source device, link more satellite Speakers or Subwoofers with one button. Each linked Bluetooth speaker can be set to either audio track and EQ setting to customize sound across your space. Infinitely expandable, you can connect unlimited Rocksteady STADIUM Speakers & Subwoofers with one touch, covering any size area, for multiroom speakers at home, office, indoors or outside, transforming your space into a fully immersive and expansive listening area. Long-lasting battery plays up to 30 Hours to keep the party going, and Bluetooth ranges up to 100 feet. Connect your favorite media with 1-Tap Bluetooth pairing or 3.5mm auxiliary jack. Keep them plugged in or unplug and use speakers anywhere, indoors or out to experience music without limits. Toggle Bluetooth ON or OFF with one touch. Responsive LED touch controls and physical switch for Power & Channel Selector. Includes 4 Speakers, 1 Subwoofer, 5 Type-C High Speed Charging Cables, 3 USB High Speed Wall Plugs, 2-3.5mm Aux Cables, Instruction Manuals. Color: Black.