For Portable Multi-Functional Speaker System, Green For Universal dock to play iPhone, iPhone 3G, iPhone 3GS, iPhone 4 and iPod. Can also be linked to MP3, MP4, Notebook, CD, DVD player and Mobile Phone. 3. Powerful sound system from a modern and compact system. 4. Wireless remote and built-in controls For speaker and iPhone playback. 5. Can be charged while playing by plugged in directly. 6. With remote control. 7. 270*65*70mm.