... a perfect music world.l Mini, portable digital speaker for your convenience, connecting to your MP3, ... PSP, mobile phone, notebook computer, Hi-fi speaker, U-disk and TF card.l Perfect combination ... noise ratio of power amplifier: ≥80Dbl Loud speaker 1.77 inches (external diameter 45mm) Magnetic ... input. Accessory includes 1 USB cable, 1 line-in cable Packing detailGift blister box packingProduct size7 ...