Prevents handset cords from getting tangled, Great for recessed handset jacks. This detangler automatically rotates with telephone handset so cords never get tangled. It Installs easily on the handset without the need for tools.Superior design uses an extended cable for compatibility with handsets that have recessed jacks. The extended cord also provides flexibly and prevents damage if the handset is accidentally dropped onto a hard surface. Automatically rotates Compatible all handsets Eliminates tangled cords Designed to fit phones with a deep recessed jack