NECABLES is not only a brand, we have our own factory that has been manufacturing these telephone adapters and cables for almost 20 years Specifications: Housing: Plastic ABS White, flame retardant and durable Pins: Phosphor Copper, 50 micron gold plated, better toughness and contact PCB inside, provides stable connection and fast transmission Slim design, even works well with 4 or 6 port decora wall plate insert Easy to install and no static or distortion of voices Durability: 750 times min.Package: 2pcs per bag Warranty: NECABLES offers 30 Days Money-Back and 12 Months replacement service