Handset Cords & Cord Detangler: Telephone cord detangler fits for home or office landline phones that work with a standard RJ9 telephone line, 4P4C Gauge coiled handset cord. But NOT suitable for VOIP phones and RJ45 modular plugs. Gold-Plated Materials: The telephone detangler uses high-quality materials and gold-plated metal contacts to ensure great connection and sound quality. Use it to extend the life of your phone cord and prevent tangles. Easy to Use: Stop untangling twisted telephone cords. With an easy-to-install telephone detangler, tangled cords are a thing of the past. Simply snap the detangler in between the handset and the cord. The superior design uses an extended cable for compatibility with handsets that have recessed jacks. 360 Degree Rotating Untangled Cord: The telephone cord detangler automatically rotates 360 degrees to effectively prevent your coiled phone cord from being tangled and messed up, and you won't be frustrated by tangled cords. Package Includes: 1 x Telephone Handset Cords, 1 x Cord Detangler.