Polycom SoundPoint 12 ft. Black Handset Cord For IP 301, 501, 601, 670, 321, 331, 335, 450, 550, 560, 650 Phones 19 inches long / 12 foot when stretched Compatible with IP 301, IP 501, IP 601, IP 321, IP 331, IP 335, IP 450, IP 550, IP 560, IP 650 and IP 670 Phones