MIC button one click music play/pause function. MIC button two click next song MIC button three click previous song. MIC button one click phone answer ,MIC button press 2s for call end and MIC button long press to reject a call for call mode. MIC button long press to enable Siri for standby mode. Volume(+)button short press to increase volume. Volume(-) button short press to reduce volume. Noise reduction, balanced sound quality. TPE cable, tangle-free storage.