3.5 mm Mic Earphone Socket Brand new and high quality. Complaint with USB 2.0 full-Speed (12Mbps) specification. Complaint with USB audio device Class specification 1.0. Complaint with USB HID class specification 1.1. USB bus-powered mode type-A, stereo output jack, mono microphone-input jack. Functional keys: microphone-mute, speaker-Mute, volume-Up, volume-Down. LED indicators: microphone-mute status, activty. Include xear 3D, the virtual 7.1 channel sound simulation software for Windows XP/ Vista. Driverless – no driver required for Windows 98E/ ME/ 2000/ XP/ SERVER 2003/ Vista, Linux, MacOS. Color: Black, White. Size: 31.5cm x 3cm x 1.5cm - 12.4inch x 1.18inch x 0.59inch. USB sound,usb External 7.1 Channel Stereo Sound Adapterการด์เสียงยูเอสบีแบบสาย (ดำ)