Tote tunes near and far without ever having to untangle wires or deal with extension cords. Weighing in at just over 4 pounds, this Bluetooth-enabled, wireless speaker runs on solar power. If the party continues into the night, the internal lithium battery will keep the music pumping 8 hours after the sun has set. In case power becomes a problem, the speakers can always be plugged in via AC adaptor. Control songs remotely through any Bluetooth-enabled device, and use the USB port on the Rukus to charge other mobile devices.