Sound Professionals/Audio Technica ATR3350iS-ADAPTER - Adapter to allow use of battery powered and wireless microphones with smartphones, iPhone/iPad and computer combo jacks ATR3350iS-ADAPTER
Audio Technica ATR 3350 Lavalier Microphone Review | and Test - YouTube
Sound Professionals ATR3350-USA - Omnidirectional lapel microphone – Compatible with Most Portable Recorders, Laptops and Steno Machines – No Batteries – Made in USA. ATR3350-USA