Softalk Telephone Cord Twisstop Untangler - 1 Pack - 1 x RJ-11 Phone Male - 1 x RJ-11 Phone Female - Black Cord untangler prevents tangled cords and does not affect sound quality. Twisstop automatically rotates to eliminate telephone cord twist. Plug into any standard phone for more freedom of movement. No tools are required. Twisstop offers gold-plated contacts.