The Rode SC4 3.5mm TRS to TRRS Adaptor is designed to let you connect a microphone with a 3.5mm output, such as
the Rode VideoMic, to smart devices with a 3.5mm TRRS input. It
features color coded, gold-plated connectors, with gray indicating the
TRRS connector, in addition to shielded construction. The SC4 is
compatible with stereo microphones and combines left and right channels
to a mono signal for TRRS compatibility.