... Good quality & Factory price 4.ROHS Approval 2012 New Product Amplifier Speaker For Iphone 5,Iphone 4s & Samsung S3,S2,Galaxy Note ... internal speaker is magically amplified.This product is compatible with iphone 4S, iphone 4, iphone 3GS, iphone 3G, ipod Touch4, and other ... the AA batteries will not be used. 2012 New Product Amplifier Speaker For Iphone 5,Iphone 4s & Samsung S3,S2,Galaxy Note