Speaker bag special for Iphone 4, you can adjust the music directly no need to open the bag, also fit for IPOD, MP3, MP4 ... you can adjust the music directly no need to open the bag It`s also fit for IPOD, MP3, MP4 players ... PU+EVA * Battery: AA*2 (not included) Packing: polybag bag+white boxCtn meas: 56*35*36CM/60PCSG.W./N.W ... 5(kgs)Ada-04 ADA-02ADA-02ADA-03 Speaker bag,Portable Speaker bag for Iphone