... , MP4 player, PC, computer, laptop, mobile phone etc.4.Use with rechargable battery,mini,portable,easy to take ,can enjoy music ... Plastics Electronics CO.,LTD mainly manufactures multimedia speakers, including mini speakers, 2.0 speakers,2.1 speakers,card speakers and ... glad to answer inquiries. Contact us now.Thank you! mini digital speaker,round,colorfull, for mobile phone/notebook/mp4 (SP-105)