TRRS 4 Pole Connectors - Supports Audio, Microphone or Video. 2.5mm Male to 3.5mm Female Stereo Audio Cable. 3.5mm Female Headset to 2.5mm Male Adapter. Convert 3.5mm smartphone, Android, Blackberry, or iPhone headset plug to standard 2.5mm plug,Works with 3.5mm stereo headsets.
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