... 2.USB cable 3.FM radio, earphone function Features: battery powered ipod speakers can link to iPad, MP3, MP4, Notebook, CD ... ,IPOD,iPhone&iPhone 3G&4 can be charged when playing by plug in straightly. Plays audio from iPod, iPhone, iPad, computer ... with 3.5mm audio jackEach speaker contains built in amp powered by rechargeable batteryIncludes speaker cable with USB plug for charging speakersVacuum ...