... speaker DescriptionPromotion price SU-05 card mini speakers, lithium Speaker / U disk / SD cmobile phone speaker, MP3 speaker, computer soun.dProduct parameters ... music speakers, you can listen to the phone perfect music player supports MP3, MP4, notebook computer, PC2, 3.5mm standard ... plug, the speaker shall apply to all of the music player.5, no need to consume the phone battery, rechargeable ...