Wireless 2.4Ghz outdoor Waterproof Speakers For ipod Touch / ipod Classic / Nano / Craetive Zen and all Mp3 players with a 3.5mm Wall mountable: Includes mount brackets so you can mount these speakers just about anywhere, indoor or out. Speaker system has an operating distance up to 150 feet. Indoor and outdoor use: Element's 900MHz digital hybrid wireless speaker system lets you to enjoy music anywhere inside or outside your home.