Apply to the IPOD, NANO4G, IPHONE, IPHONE 3G, MP3, MP4, CD, DVD, mobile phones, and so any player and any Apple products; with USB charging function (for MP3, cell phone, IPOD, IPHONE3G players such as charging); The whole point of firing frequency; LCD + backlit display, high-fidelity stereo audio-visual effects; with cell phones and IPHONE frame; color box packaging; equipped with an audio line