... *2 the functions and the advantages of our mini speaker1,it can play music automatic by the ... other supplier. product feature Part number:SG-589 mini portable multimedia speakerinterface:USB,SD card,3.5mm ... payment: 30% in advance by T/T,the balance should be paid before the shipment.delivery terms: ... products covers from Mp3 player/Mp4 players,to mini speakers,etc.We are a powerful manufacturer with ...