Get on the road with Marshall Kilburn II portable speaker. Free from the confines of wires and cords, this Bluetooth speaker offers 20+ hours of portable playtime on a single charge. This stout-hearted Hero weighs only 6 lbs. And is the loudest speaker in its class. It produces a clear midrange, deep base and extended highs that are unrivaled for a speaker This size, and its multi-directional sound will immerse you in your music, indoor or out. Echoing the legacy of rock "n" Roll, Kilburn II has a solid metal grille that Pats homage to the steel mesh grille found on many microphones and a guitar inspired carrying strap for easy portability. Its flush mounted corner caps and water-resistant design make it supremely rugged and durable. Kilburn II is able to withstand even the longest days on the road.The product is multiple voltage compatible, that voltage arrange is 100-240V.