The adapter cable from Eneroid allows for a flexible connection between devices with different barrel plug and socket formats. It features a barrel socket with an inner diameter of 2.1 mm and an outer diameter of 5.5 mm, designed to fit a barrel plug with an inner diameter of 1.35 mm and an outer diameter of 3.5 mm. This product is ideal for use in consumer and hi-fi audio applications where a reliable connection between various devices is required. The adapter cable is manufactured in China and provides a practical solution for integrating audio equipment that uses different connection standards. With this adapter cable, users can ensure that their devices are compatible and that optimal audio transmission is guaranteed. It is a useful addition to any audio setup and allows for easy handling and installation.