... Music Power bank, external power station/emergency charger, FM transmitter, handsfree car kitProduct IntroductionPower you life, enjoy your music anywhereThe Magic Music ... USB interface 5V-1.0A 3.Capacity: 1300mAh 4. Battery cell: Li-Polymer5. Compatibility: Work with iPhone*2G, 3G, 3Gs, 4G ... Music Power bank, external power station/emergency charger, FM transmitter, handsfree car kit