62EARPHONE MODENormally, when the monaural earphone is connected, the PTT switch of thetransceiver can not be used, If you set the earphone mode to ON, you cantransmit using the PTT switch of the transceiver.Note:◆ Please use KENWOOD recommended product for monaural earphones.1 Enter the Setting mode {p.37}.2 Press the or button to select “ ”.3 Press the Menu button then press the or button to select your desiredvalue.OFF When using a dedicated optional earphone microphone,headset, speaker microphone.ON When using the recommended monaural earphone.• The icon appears on the display when “ON ” is selected.4 Press the Menu button to confirm the selection, then press the PTT switch orthe Side button to return to the operation mode.Operation of each part by Earphone modeConnection withSP/MIC jack YES NOEarphone mode OFF ON OFF ONInternalMicrophone disable enable enable enableSpeaker disable disable enable enablePTT enable enable enable enableExternalMicrophone enable disableSpeaker enable enablePTT enable disable