... a perfect music world.l Mini, portable digital speaker for your convenience, connecting to your MP3, ... noise ratio of power amplifier: ≥80Dbl Loud speaker 1.77 inches (external diameter 45mm) Magnetic ... Accessory includes 1 USB cable, 1 line-in cable Packing detail Gift blister box packingProduct size7 ... delivery. All items must be returned in their original condition, in order to qualify a refund or ...