... : 1.3.5mm Audio cable 2.USB cable 3.FM radio, earphone function Features: usb laptop speakers can link to iPad, ... from iPod, iPhone, iPad, computer, handheld game systems, other audio devices equipped with 3.5mm audio jackEach speaker contains built in ... amp powered by rechargeable batteryIncludes speaker cable with USB plug for charging speakersVacuum bass design for enhanced low frequency ...