... 2.USB cable 3.FM radio, earphone function Features: car speaker can link to iPad, MP3, MP4, Notebook, CD, DVD, Mobile ... -in stereo FM radio3.Build-in 1450mAH Li-ion battery, support long time play4.Using new technology, Nice acoustic fidelity5.Build ... pilot lamp, build-in mp3,mp4,laptop,mobilephone as peripheral speaker. car speaker