... warranty card.4, a boxFeatures:1, there are music angel M03UK U disk, TF card, MP3, SD ... PC or notebook computers to connect, to achieve music.4, the stylish aluminum case, high-fidelity 1 ... the product can not only provide pleasant background music, but also adds a pleasant flavor. This product ... 5V adapter, computer USB or the built-in batteries provide the power supply. Travel is absolutely essential ...