This mini audio box is a perfect combination of classic and modern
performance. It is simply the masterwork of audio boxes. With a very
loud output (louder than it's size might initially suggest), you can
enjoy music and enjoy life everywhere you go. SD Card slot, USB
Recording slot and FM Scan Radio are built into this devise. It uses a
rechargeable Li-ion 3.7v battery. You van connect to your MP3, MP4, DVD,
CD, iPod, notebook computer, etc.