RJ11 inline coupler has high fidelity sound quality, exquisite workmanship, strong anti-interference ability and provides good solid connection without signal loss. It is used to connect and extend two existing telephone lines with R11 telephone connector at both ends through telephone through box. Easy to install and no static or distortion of voices. Universally suitable for all RJ11 devices such as landline phones, fax or answering machines etc. Wide range of use: family, study, living room, bedroom, office, business meeting, education, entertainment, etc.Features:1. One RJ11 phone jack can be converted into two jacks to connect multiple phones, fax machines or modem devices at the same time.2. Easy to use and install, no specialized skills are required to quickly establish a connection.3.
