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 Suggested Applications: Computers with accessible 3.5mm speaker and microphone jacks, MP3 players and DVD players with 3.5mm audio output Fully Compatible With : VoIP Skype / MSN / Yahoo / ICQ / AOL or internet calling