Computer Portable USB Mini Loud Professional Speaker The computer mini speaker is USB-powered,plug and play,very easy.The mini usb speaker is built-in volume control, very convenient to adjust volume. The desktop usb speaker is energy-saving and environmentally-friendly.It is safe and reliable. This professional USB mini speaker is USB cable for power, plug and play is specially designed for Desktop, Laptop, Notebook, Tablet PC. With small body and Lightweight,this usb computer mini speaker is convenient to carry.Its high-grade loud speaker will bring you much wonderful voice when listening to music,watching film or playing games. This USB portable mini speaker will be a super companion for your daily life. Specification: HK-5007 Mini USB Speaker Product size: 90x30.6x49.6mm Power:3W Input:DC 5V Net Weight:109g Material:ABS Cable: USB line 114cm