2 Pack White RJ11 Duplex Wall Jack Splitter, 1 to 2 Dual Phone Line Modular Adapter for Landline, Fax Machines and Cordless Phone Systems

This RJ11 duplex wall jack splitter plugs directly into standard wall-mounted phone sockets, turning a single modular jack into two separate RJ11 ports to support two communication devices on one telephone line.

Built with high-conductivity internal lines and anti-interference shielding, it prevents audio distortion, buzzing noise and signal loss during voice calls, fax transmission and ADSL internet use. The pure white shell blends perfectly with common wall faceplates to maintain a tidy indoor wiring aesthetic.

Sold as a 2-pack set, it provides spare splitters for multi-room layout or backup use. Its slim plug-in structure sits closely against the wall without protruding excessively or occupying extra space.

No drivers, power adapters or professional wiring work are needed. Just attach it to any standard RJ11 wall jack, then connect landline phones, cordless phone bases, fax machines or modems. Perfect for families, small offices and commercial spaces with limited telephone wall ports.