[High quality] Made of black ABS material, non-toxic and harmless, long-term use, single-hole RJ11 6P4C cable phone adapter. | [Easy to connect] A single jack used to connect lines or telephone sockets, with accurate signal transmission and clear sound quality. | [Moderate length] The length of the cable eliminates unnecessary clutter behind the phone and improves the signal strength. | [Durable structure] ABS material shell, thick gold plating on the contacts, with RJ11 socket and cable. | [100% satisfaction] If you are not satisfied with the product, you can contact us at any time, we will serve you wholeheartedly!