Insten VOIP/SKYPE Mini Flexible Microphone for VOIP/SKYPE - Black Length: 5.75 inch. Rrequency Response: 20hz-20khz Color: Black Plugs into standard 3.5mm audio jacks Fully Compatible With : VoIP Skype / MSN / Yahoo / ICQ / AOL or internet calling Notice: This item works for computers with separated 3.5mm speaker and microphone jacks Fully compatible with: VoIP Skype / MSN / Yahoo / ICQ / AOL or internet calling Plugs into standard 3.5mm audio jacks Length: 5.75 inch Frequency Response: 20hz-20khz