3.5mm audio LINE-IN Simply connect your MP3/MP4 Payer,iPods,iPhones,mobile phones and computer via 3.5mm headphone socket. Promotional gift mini speaker♦ Music source:3.5mm audio LINE-IN Simply connect your MP3/MP4 Payer,iPods,iPhones,mobile phones and computer via 3.5mm headphone socket.♦ RechargingVia a computer`s USB port port or via compatible DC mains charger, LED light display red color. ♦ ...