The phone cable is good to long-distance communication for your desk phone or office phone .Extended length coiled cord is provided Extra Length for working in the office or at home, with RJ9 Modular Plug. Keep the sound quality with high-quality material and upgraded metal contacts. The cable detangler works on RJ11 models of handset cords and handsets. Applies to Family Fixed Telephone, the item model is RJ11 Plug.Universally compatible coiled handset cord with all telephones manufacturers Phone cord detangler rotating automatically 360 degrees to stop your coiled phone cord from becoming twisted and tangled with the phone line detangler. The tangle free phone cord includes gold-plated metal contacts to ensure great sound quality. The phone cord is made of pure-copper material, much better than normal iron or copper-clad-steel telephone line cord.The phone cable is good to long-distance communication for your desk phone or office phone .Extended length coiled cord is provided Extra Length for working in the office or at home. Package content: 1 x AIMIJIA Telephone Cord Detangler, 1 x AIMIIJIA Telephone Handset Cord.