Telephone Cord Accessory Kit for Landline Phone Jack Kit, Includes; Telephone Extension Cord, Duplex Wall Jack Adapter and Splitter, Cable Coupler Connector. (4-Pack)

Telephone extension cord: standard RJ-11 Modular (registered jack-11) male to male plug, type: 6P4C (6 positions and 4 contacts) total length: 50 feet.
This cable allows extending your phone Cord 50 ft. away of your phone jack and not having to go every time you need to use your phone from room to room.

Duplex Wall Jack Adapter: converts a single RJ-11 6P4C Male Line connection to a dual RJ-11, 6P4C Female Jack.
This adapter allows adding two devices sharing the same line. Like a fax machine, answering machine, Speaker Phone, modem, Call Blocker, Etc.

Jack Line Splitter: RJ-11 (RJ-14) 6P4C Male Line to 2 x 6P2C Female Jack,
Use the Line-In Splitter to Divide Lines into 3 Separate Outlets (Line 1, Line 2, and L1 + L2).

Straight Cable Inline Coupler Connector: RJ11 Female -to- RJ11 Female 6P6C.
This inline coupler provides a female to female feed-through connection for join 2 RJ11 telephone lines together, to extend phone line connections.