Detailed Selling Lead Description Features: 1) Foldable design is perfect for traveling 2) Mini size speaker with amplifier 3) Enjoy quality music with compact design 4) Surprising audio effect by employing latest IC (USA) 5) Frame specially designed for various iPod MP3 players, good for various MP3 brands 6) Suitable for universal adaptor or 4 AAA 1. 5v batteries 7) Carrying-pack is optional 8) Spread out dimensions (W x D x H) : 230 x 81. 5 x 110mm 9) Folded dimensions (W x D x H) : 230 x 37 x 61mm Packing: 12pcs / ctn Dimensions: 50 x 34. 5 x 27. 5cm G. W. : 11kg