The Centrios wireless panel speakers use the latest technology to enable you to enjoy your music anywhere within 100m (328') of your home. They're sleek and portable with a classic design that will complement any home decor. With 900 MHz frequency you get great sound quality and amazing bass. Included with the speakers is a remote, 3 AC/DC adapters, 3.5mm to 6.3mm adapter plug, and a RCA cable. Requires six AA batteries (not included).