Only compatible with the CTIA standard 3.5mm audio port, not applicable to the OMTP standard (dont worry, more than 98% of headphones in the US and European market currently use the CTIA standard, and there are corresponding solutions in the enclosed manual)Be sure to connect the headset to this adapter first and then connect the adapter to the computer, otherwise the computer will detect The hardware fix, that the microphone is missing, which can lead to the microphone function of the headset being unusable. The internal circuits of Apple original earphones, Beats earbuds and Bose earbuds are developed independently by the respective brands. The internal impedance occasionally does not match the hardware of some old computers and mobile devices, which may cause the microphone to be unrecognized and unusable. Circumstances, please buy according to your own circumstances. When connecting to the Xbox One, the connection must be made via the official Xbox One audio adapter. The female port of this adapter must be connected to the TRRS 4-pin interface, and the microphone function of a TRS 3-pin interface device will not be available. (Please check the pin of your plug, the 3 rings are TRRS and the 2 rings are TRS), it does not support volume +/- and other wire control functions. The adapter is not suitable for condenser microphones.