CPR RJ11 Plug to 2 Way RJ11 US Telephone Socket Adapter Splitter The CPR 2 Way RJ11 Splitter lets you plug in 2 phone devices to 1 wall jack Manufactured From High Quality Durable Plastic 1 Male plug to 2 female dual socket, 6P4C RJ11 plug The adapter is suitable for standard telephone cable, is easy to use Case Size : 2.3 x 2.1 x 2.1cm/ 0.9" x 0.83" x 0.83"(L*W*H)