The Saramonic SR-UC201 is a female 3.5 mm TRS to male 3.5 mm TRRS adapter cable that allows you to record audio directly to smartphones, tablets and computers with a 3.5 mm headphone connection from almost any device with a 3.5 mm audio output. The SR-UC201 also passes plug-in power to the microphone and is absolutely vital for popular on-camera mini shotgun mics as well as other plug-in powered microphones. The SR-UC201 is made from high-quality gold-plated 3.5 mm connectors and cabling that resist rust and corrosion to provide the best signal transfer.