Brand X-Sticker Model 62584 Quantity 1 Piece Color Yellow Green Material Plastic Compatible Models Laptop Cell Phone Iphone 4 Iphone 4S Iphone 5 Ipad" MP3 and most devices with 3.5mm earphone jack Function Compact and stylish design; Stick the vibration pad on any virtual surface"" varied sound on different objects; Anything could be your speaker Impedance 4 ohm Frequency Response 300~10000Hz FM Radio No Power Supply Powered by USB cable or 2 x AAA batteries Packing List 1 x Stylish resonance speaker 1 x USB cable (90cm) 1 x Chinese/English user manual "