Features: This RJ45 to RJ11 converter can expand their telephone line functions. Made from durable ABS material, this converter is long-lasting and delivers consistent performance. Suitable for households or small offices with 4 telephone lines, this converter allows you to easily split one phone line into four. Whether you need to connect multiple phones in different rooms or use a fax machine and phone simultaneously, this converter has you covered. RJ45 to RJ11 converter adapter, network port to telephone port, used only for telephone or network cable to telephone use; Specifications: Material: ABS Color: White Size: Approx. 65x39x28mm / 2.56x1.54x1.1in Working Temperature: -10℃-50℃ Model: WDT-RJ45/11 Note: Please allow 1-2cm errors due to manual measurement, make sure you don't mind before ordering. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Includes: 1x RJ45 to RJ11 Telephone Line Splitter