100% brand new and high qualityThe USB Virtual 7.1 Channel Sound Adapter is a portable sound controller that can add 3D sound to any PC equipped with a USB port.The device is small enough to fit comfortably in the palm of the hand and light for easy transportation. It is also easy to use - simply plug the device into a spare USB port and it provides instant, audio via speakers or headphones. It produces a superior sound to its 5.1 predecessor.Complaint with USB 2.0 full-Speed Specification.Complaint with USB Audio Device Class Specification 1.0Compliant with USB HID Class specification1.1Include Xear 3D,the virtual 7.1 channel sound simulation software for Windows XP/Vista 98se/ME/XP/2000/2003/Linux, Mac OSUSB2.0 Full-Speed (12Mbps) SpecificationConnectors: USB Type A, Stereo output jack, mono microphone input jackUSB bus-powered, no external power requiredLED indicators: Microphone-Mute Status, ActivitySize:5.70*2.50*1.40cm/2.24"*0.98"*0.55"Quantity:1PcNote:Size for manual measurement, there may be a 0 to 2 cm error, belongs to the normal phenomenon.And due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package includes(no retail package):1Pc x 7.1 Sound CardPlease allow slight dimension difference due to different manual measurement.