... shielded 2.Built-in rechargeable lithium battery 3.Play time 2-4 hours new mini speaker for mobile mp3 mp4selling point1 ... laptop, DVD, TV, mobile phone etc.4.Use with rechargable battery,mini,portable,it can be with keychain to take along more ... Shinedee Plastics Electronics CO.,LTD mainly manufactures multimedia speakers, including mini speakers, 2.0 speakers,2.1 speakers,card speakers and ...