Instantly add an additional phone jack to any room in your house, saving expensive phone line hookup fees. Use with telephones and answering machines. No wiring, drilling, or tools required; just plug it in. Create unlimited extensions in home, bedrooms, kitchen, home office, and elsewhere. (Use model TL96596 for extension unit.) Model 96595 offers built-in surge suppression and contains the base unit, an extension unit, and a 6-foot cord.