Factory-renewed Bose SoundLink wireless music system &ndash; Black Factory-renewed product offers first-quality performance and same warranty as new product Enjoy digital music and Internet radio from your computer in and around your home Easy setup--just plug the USB key into your computer. No wires, no software Lifelike Bose performance from proprietary waveguide speaker technology Easy portability from room to room, hours of playing time with the rechargeable lithium-ion battery