The SC4 3.5mm TRS to TRRS Adaptor from Rode 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.