This 3.5mm Adapter by Remote Audio is for connecting Sennheiser Evolution and Sony wireless microphones to a Lav Snake. It is used to attach and route the microphone through clothing such as in broadcast TV, newsrooms, interviews, houses of worship and more. It features a recessed TA release button to prevent accidental separation when in use. This necessary adapter is all you need when mating the Lav Snake to a locking 3.5 mm connector such as for Sennheiser Evolution and Sony wireless microphones.