... Play time 2-4 hours round speaker , portable, for mobile/notebook/mp3/mp4selling point1.Mini pop ... up, portable, unique design, small case give big and ... PC, computer, laptop, mobile phone etc.4.Use with rechargable battery,mini,portable,easy to take ,can enjoy music ... Contact us now.Thank you! round speaker, portable ,for mobile phone/notebook/mp4/mp3 (SP-105)