Extended length coiled cord grants you more line while working in the office or at home. Universally Compatible with all telephones which feature a RJ9/RJ10/RJ22 (4P4C) jack manufacturers including AT&T, NEC, Rolm, ITT, & Tie. High-quality Sound with Noise-cancelling, RJ9 connectors on each End - 4P4C Gague. Made of Pure-copper material, much better than normal Iron or Copper-clad-Steel telephone cord. The Uvital telephone landline cord cable used between handset and telephone, not from telephone to wall plug; Coiled length: 1.56 Feet (48cm) to 13 Feet (350cm).