From Free Knowledge Base- The DUCK Project: information for everyone
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The audio jack that is commonly seen on stereo headphones, audio devices such as a Sony Walkman, and some cell phones is known as the TRS Connector. The TRS phono plug connector is an audio jack with either 2 or 3 rings. TRS is an acronym representing Tip + Ring + Sleeve. The 2 ring version is for mono audio and the three ring version is for stereo audio. There are also other variants such as a four ring version which is often designed for camcorders, the extra ring for the video signal.The audio jack that is commonly seen on stereo headphones, audio devices such as a Sony Walkman, and some cell phones is known as the TRS Connector. The TRS phono plug connector is an audio jack with either 2 or 3 rings. TRS is an acronym representing Tip + Ring + Sleeve. The 2 contact (Tip + Sleeve or TS) version is for mono audio and the three contact version (TRS) is for stereo audio. There are also other variants such as a four ring version which is often designed for camcorders, the extra ring for the video signal, or for modern cell phones and mobile devices facilitating earphone and microphone combination headsets.
