Specification wireless laptop speaker: 1.LED display 2.Remote ... ion 4.USB cable/remote control Features:This wireless laptop speakers can link to MP3, MP4, Notebook, CD, DVD, Mobile ... card, Auto play function2)with Aux-in connection, support: MP3/MP4, computer, music mobile & iPod, etc3)Stereo sound ... rechargeable battery & USB power supply (5V, DC) wireless laptop speakers wireless laptop speakers