Cerrxian 3.5mm 4 Pole Stereo TRRS Audio Video Male to 4 Screw Terminal Female Headphone Balum Converter Adapter (2-Pack)

this is a three and a half millimeter stereo football microphone headphone jack adapter you can insert your microphone here you can insert your headphone here this is the 4-pole jack adapter it has a diameter of three-and-a-half millimeter or 1/8 of an inch its length is 14 millimetres the plastic plug has a diameter of six point six millimeters this is a four pole connector tip ring ring sleeve audio left audio right ground and microphone this block can be inserted in an iPhone or an iMac or on smartphones which supports a 4-pole adapter the inner diameter of these connectors are three and a half millimeters three and a half millimeters you can insert a standard headphone or standard microphone the two female connectors only accepts three-and-a-half millimeter three pole jack adapters you can also connect a standard microphone a three pole microphone the headphone only accept a standar