This is a reverse modular in-line phone line coupler for RJ11 / RJ12.
This is a reverse modular in-line phone line coupler for RJ11 / RJ12. This will extend out a telephone cord. Just simply attach to one end and add another cord and you are all set up. Connection: RJ12 3-line Female Phone Jack. Color: Ivory.
Weight: 0.03 lbs.