This DSL filter splitter enables simultaneous connectivity of a device to two phones. It is designed to separate voice signals and ADSL data signals in telephone cables, reducing potential interference of ADSL data with call quality. It ensures a smoother and more efficient communication experience. Our telephone RJ11 1 to 2 converter filters low-frequency voice signals and high-frequency data signals seamlessly. By preventing interference when transmitted over the same cable, it effectively resolves issues such as decreased ADSL speed or frequent disconnections caused by high-frequency signal loss in some telephones. Constructed with high-quality plastic materials, this telephone splitter ensures excellent signal transmission and offers a long lifespan. It includes protection against surges and over-voltage impulses induced in communication cables, providing secure and reliable performance. No external power supply is required, and installation is simple. It is ideal for use with network ADSL connections and serves as an effective ADSL telephone line filter in telephone communication systems. Enjoy a quick setup and a stable, uninterrupted connection. Fully compatible with all standard RJ11 devices, including landline phones, fax machines, answering machines, office phones, satellite receivers, DVRs, printers, computers, and more. Offering versatility and high efficiency, this DSL filter splitter is a valuable addition to your home or office connectivity setup. Color: White Material: Plastic Package Contents: 2 x ADSL Splitter Note: Light reflection and differences in display settings may cause slight variations in the color of the item shown in the picture compared to the actual product. Measurement tolerances may apply.