Headphone with controller refers to a headset that controls the facility on the headset line. Such as control of the remote MP3 device switching machine function, play and stop functions, the volume control, with all these functions that control remote facility on headset is wired headphone (Metal Earphones, Creative Earphones, Mobile Phone Earphones, Retractable Earphones, In Ear Earphones, Computer Headphones, Stereo Headphones).
Headphone with controller have 2 designs: pulley and buttons , some wired headset with special features such as show Chinese characters.
Wire-controlled headphones no matter how the interface type (audio interface, USB interface, etc.), They are four-wire connection basically , which "common loop GND" is the headphone left and right channels, microphone, output control common return line, this principle is Certainly, but manufacturers in order to monopolize the interests of online functions to do some hands and feet. For example, there are four electrodes from top to bottom, if the first and third electrode wiring swap, the phenomenon is a silent headset and wire failure, the microphone failure; if the third and fourth electrode wiring swap, the phenomenon is Both headphones are silent. Change, just in the micro switch, according to the schematic diagram of the smoothed wiring can be. 
According to the schematic diagram is not difficult to draw wire headphone plug to determine the function of the electrode: the ohmmeter measurement, one electrode and the other three electrodes are not conductive, , If the two electrodes show the maximum resistance, then the two electrodes are the headphones left and right channel lines, the rest of the electrode is the common return line. The maximum value here is relative to the remaining three electrodes, the resistance between any two electrodes, the left and right channel headphones coil resistance will differ by 0.1 ~ 0.2Ω. Some of the commands issued by the remote control can not be recognized by the remote receiving device due to the difference in the language versions recognized by the devices that are instructed by the headset to send messages and receive the information. The wired earpiece does not work for these remote receiving devices. Linx company also have more other designs of earphone and headphones for your reference, we can accept OEM and ODM, if you are interested in our products or want to do your design, pls don’t hesitate to contact us. Thanks! official website： www.linxheadphone.com
