VCOM INTERNATIONAL MULTI MEDIA ST2BKU Ergoguys Hamilton Buhl Smart-Trek Deluxe Stereo Headset with In-Line Volume - Stereo - USB - Wired - 32 Ohm - 50 Hz - 20 kHz - Over-the-head - Binaural - Circumaural - 5 ft Cable - Omni-directional, Noise Cancell