The Kube4 portable wireless audio system is designed to take great sound on-the-go. Complementing the space around you instead of competing with it. Rich, full sound with deep bass and true highs, delivers concert-quality sound. With water resistance rated at IPX5, Kube4 is not only perfect indoors, but great outdoors too – rain or shine. Keep the party going all weekend long with up to 40 hours of battery life. Wi-Fi & Bluetooth compatible up to 300-feet range. Crystal clear audio at max volume. Sync multiple speakers together. Connects instantly, just Turn it on and press play. No wires, cables, or outlets needed.