? Easy to install with a screwdriver and no static or distortion of voices. ? Comes with 1 mounting screw and 1 double sided tape, you can easily mount it on your desk, floor or wall. ? Provides your home or office with two phone jacks by occupying only one telephone line, works like a phone splitter. ? RJ11 6P4C interface, 6-Position 4-Conductors, universally compatible with all common RJ11 devices such as landline phones, fax or answering machines etc. ? 1 Pack double port surface mount phone jack ivory, 4 screw terminals inside for wire termination.