- 4-pin telephone cable adapter from BT connector to RJ11 - Converts a BT connector into an RJ11 connector, making it easy to connect phones and communication devices - Male to female design: BT male plug on one end and RJ11 female on the other - Compatible with standard UK telephone sockets - Made with high-quality materials to ensure a reliable and durable connection - Four pins for optimal signal transmission - Easy installation: connect the adapter to the BT socket and your device's RJ11 to the female end - Convenient and practical solution for connecting devices to a BT socket without extra cables or converters