Y Cable, 3.5 mm TRS to Dual 3.5 mm TRSF Use the Y Cable, 3.5 mm TRS to Dual 3.5 mm TRSF to duplicate a stereo signal. It is ideal for use as a headphone adaptor, adapting one headphone jack to two headphones. Technical Details Connectors: 3.5 mm TRS to Dual 3.5 mm TRSF SKU: YMM-232