This product allows users to utilize all pins of a male 3.5 mm connector with four pins via an easily accessible header. It is optimized for use with Arduino (or a compatible board such as Dasduino). https://elecena.pl/product/25816072/333088-developer-boards-3-5-mm-jack-socket-stereo 2024-05-06 https://elecena.pl/product/25816072/333088-developer-boards-3-5-mm-jack-socket-stereo 2025-04-07