【High-Quality Materials】Our white telephone extension cord is made from premium materials to ensure stable signal transmission. The durable PVC outer cover and gold-plated copper core minimize signal loss, delivering clear communication quality | 【Versatile Compatibility】Our phone line cable features two RJ11 standard connectors, making it compatible with landline phones, fax machines, modems, answering machines, and more. This telephone line is used to connect a landline phone to a wall jack. The RJ11 coupler is used to extend the phone line | 【Easy Plug and Play】Connect one end of the phone line cord to the wall jack and the other end to the landline telephone to use it. If your telephone cable is not long enough, you can use the RJ11 coupler to extend two lines. The cable clips can neatly secure your telephone line to the wall or furniture | 【Excellent Extension】The high-quality telephone line cord for landline allows you to place your phone up to 25 feet away from the wall jack, providing flexibility in your setup | 【Standard RJ11 6P4C】Our product includes a 25 feet RJ11 telephone wire, an RJ11 coupler, and 20 adhesive cable clips, providing enough length for connecting devices, making it ideal for both home and office