Review on Movo MC3 - TRS to TRRS Adapter: Microphone Compatibility for iPhones, Android Smartphones, and Tablets by Katie Moore

I did my homework and decided that this adapter would allow me to connect the Rode microphone I use with my DSLR to my iPhone. Plug everything in and no beep at all. I tried again, again, again, and rechecked all my connections and it still didn't work. This made me doubt that my mic wasn't working, so I plugged it back into my DSLR and did a thorough test to make sure the Rode mic was actually working properly. OPTIONAL UPDATE: I bought a different brand of cable that performs the same function. and it works so I can connect a Rode mic to my iPhone. I just wanted to prove that it works (at least for me).