CablesOnline 3.5mm Stereo TRRS 4-Pole M to TS Jack Hi End/Powered Microphone to iPhone Adapter, (IP-MIC4) connect a higher end or battery powered microphone with a 3.5mm plug to your iPhone/ iPad or similar device (1) 3.5mm TRRS male stereo plug (1) 3.5mm TS female jack Female jack has built-in amplifier for dynamic microphones Features a quality slim design male connector for ease of use with bulky cases