Headphone Microphone Headset For PC Computer Skype Outstanding quality ,excellent and ... volume control, enjoy the e-communication on the internetUsefull for online chate room ,such as MSN /Yahoo ,speech ... recognition software, SKYPE, VOIP, online / multiplayer gaming and for simple listening of musicIt also can be used as earphones ... ±2dB Microphone Frequency Response: 30-16,000Hz headphone(HP-01)