***** Best Quality Guranteed. *****HANDSET CORD UNTANGLER telephone cable detangler applies to family or office fixed-line telephones which work with standard RJ9 telephone line, 4P4C gague handset coiled cord, such as Cisco phones. But NOT suitable for VOIP phone and RJ45 modular plug *****MATURE PROCESS TECHThe phone detangler use high-quality materials and gold-plated metal contacts to ensure great connection and sound quality. Use it to extends life of your phone cord and anti tangle phone cord *****360 ROTATION ANTI-TANGLE CORDThe Phone Line Detangler automatically rotates 360 degrees to effectively prevent your coiled phone cord from being tangled and messed up, and you would not feel frustrated with entangled cord *****EASY TO USENo tools required, simply plug the detangler into the end of your handset, and plug the cord's head into the detangler on the other end, and now they are connected! Taking off the detangler is also easy *****Package Includes4 x Telephone Cord De