... prices 3.Multi-color optional 4.EVA molded case Specifications Speaker mp3 case -Appliable for MP3,ComputerSGS& ROHS Promotion bag ... speaker, Speaker mp3 case, Bag speaker, Portabels speaker, Speaker bag, MP3 speaker, Mini ... Impedance:4Ω±0.5ΩCircuit Current:≤300mASupply Voltage Rejection:≥48dBSpeaker Unit:Diameter:(40/4Ω/2W)Case Material:EVA+PUDimensions:10* ...