12.5 inch Headset and Microphone Adapter 3.5mm TRRS Female to 2 x 3.5mm TRS Stereo Male (Plugs into your Computer for Audio and Microphone Use) - PI Manufacturing
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MillSO Headset Splitter for 2 TRRS Headphones or Mics - 3.5mm Jack Adapter TRRS 4-Pole Male to 2 Dual Female Splitter Compati - Walmart.com
SANOXY 3 ft. 3.5 mm TRRS Male to Male Audio and Microphone Cable CBL-LDR-SR107-1103 - The Home Depot
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Sescom iPhone/iPod/iPad TRRS to XLR Mic & 3.5mm IPHONE-MIC-1RA