Specification usb multimedia speakers: 1.LED display 2.Remote control 3.FM radio,built ... -in Lin-ion 4.USB cable Features: This usb multimedia speakers can link to MP3, MP4, Notebook, CD, DVD, Mobile ... music 5)Music styles of Classic/Jazz/Pop/Rock/Bass6)Portable speaker, a very good friend for tours & outdoor activities. ... Lithium rechargeable battery & USB power supply (5V, DC) usb multimedia speakers