Insten Mini 3.5mm Flexible Microphone for PC/Laptop/Skype Flexible cable design for easy height and angle positioning Plug and play - no software to install Mini Flexible Microphone for PC Suitable for internet telephony VOIP / SKYPE and speech recognition programs Jack: 3.5mm, Length: 5.75 inch. Rrequency Response: 20hz-20khz.