Speaker bag special for Iphone 4, you can adjust the music directly no need to open the bag, also fit for IPOD, MP3, MP4 ... 20pcs or 100pcs are available Description * It`s special design for Iphone 4, you can adjust the music directly no need to ... open the bag It`s also fit for IPOD, MP3, MP4 players etc * 3.5 mm audio line ... -04 ADA-02ADA-02ADA-03 Speaker bag,Portable Speaker bag for Iphone