?100% GUARANTEE? We provide up to 24 months warranty service and customer service. If you have any problems, please contact us in time, we will serve you wholeheartedly. ?Package Includes?10xUbramacTelephone Cord Detangler(Black). ?Mature Process Tech?The phone detangler uses 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. ?Easy to Use: Stop untangling twisted telephone cords? With an easy to install phone detangler twisted cords are a thing of the past. Simply snap the detangler between the telephone handset and the cord. The superior design uses an extended cable for compatibility with handsets that have recessed jacks. ?360° Rotation Anti-tangle Cords?The 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. ?Handset Cord Untanglers? telephone cable detangler applies to family or office fixed-line telephones which work with a standard RJ9 telephone line, 4P4C Gague handset coiled cord, such as Cisco phones. But NOT suitable for VOIP phone and RJ45 modular plug.