U Shaped Adapter, Dual 3.5 Female to Single TRRS Male - Encore Data Products, Inc.
SC3 Adapter Cable - 3.5mm TRRS Female to 3.5mm TRS Male Adapter Cable (TRRS-TRS) – Fotodiox, Inc. USA
Reduce 3.5mm 4-Conductor Plug to Fit into 2.5mm TRRS Jack
Amazon.com: Movo TCB2 XLR Microphone to TRRS Smartphone Adapter with Headphone Jack - Compatible with iPhone and Android - XLR Female to 3.5mm Male Y Splitter : Electronics