Speaker case 1,Portable, enjoy music everytime 2,Attractive out apperance 3,many color 4,MP3,MP4,iphone Speaker caseProduct Description:1. Portable, ... : 2W x 1.5WFrequency Response Range:275Hz-20KHzImpedance: 4HM( Ω );Speaker unit:50mm Size:13.5* 11.2* 5.5CM Color ... requirement AccessoriesUSB cable 3.5mm Standard stereo audio cable User Manual This model have stereo sound,volum control,belt hook.It ...