【Wide Application】3.3Ft Phone line length , 6p4c connector. This telephone cords for landline phone comes with two RJ11 standard phone connectors on both ends ，which can be used for telephones, fax machines, modems, answering machines, etc 【CLEAR AND PLEASANT COMMUNICATION 】:Designed for superior signal transmission. The cores of wires are made of Pure-copper material, thickness is up to 26AWG, which is much better than ordinary Copper-clad-Steel telephone cord or most telephone cords with thin copper cores on market, And contacts of plugs are coated with thicker gold plate than normal ones on market. Both ensure great connection and conservation quality. Make your phone call and reply more pleasant. 【Heavy duty and premium quality cable】: cable cord Made from high quality material to last in rough weather conditions for everyday use. 【PREMIUM QUALITY】: Manufactured with high quality. Each telephone line has been hand selected and tested and achieves our standards for premium quality. 【GREAT TELEPHONE ACCESSORY】: Ideal replacement for your telephone's or fax line/cable, or use as telephone extension cable. 3.3Ft Telephone landline Extension Cord Cable Cord with Standard RJ-11 6P4C Plug (4Pack, Black)