Description This RJ11 plug splitter adapter is made of premium material, which can withstand long-lasting use. Features the copper material, which has high durability, not easy to deform. Fine workmanship, ensures practicality. Features -Color:As Shown -Material:copper, plastic -Size:3.80X2.80X2.20cm/1.49X1.10X0.86in - When an outside line is incoming, all phones will ring, and you can talk to an outside line by picking up any phone. - When you need to dial an outside line, you can directly dial any phone. - Replace your old or broken RJ11 phone line splitter with a new one. - Note: The two-core telephone line can also be used normally when plugged into this product. - It is in stable characteristics, high performance and it is in great reliability, simple, easy to install. Package list: 10 x RJ11 splitters