JS-615呼叫中音，話務員專用撥號器電話機 JS-615callAlto,operatordedicatedtelephonedialer 此款撥號器因其專業而獨特的耳機通話設計使本通訊裝置具有高保真、 CancontrolthesizeofthebasevolumeCikuanDialerforitsprofessionalanduniquedesignmakesthisheadsetphone communicationdeviceswithhighfidelity, 高清晰的通話性能。 LightsareonacallCallhigh-definitionperformance. 自動接線功能 Flash,muteandlastnumberredialAutowiringfeature 內外鈴聲可選 RingingsoundcontrolInsideandoutsidetheringoptional 音樂MUTE功能 AutomaticfeedlinefunctionMusicMUTEfunction 收線、重撥功能 HairhoopcanbeadjustedTake-up,redialfunction 通話LED指示 Technicalparameters:CallLEDinstructions 15dB接收音量可調 Speakerimpedanceof150ohms15dBreceivervolumeadjustable 超強防雷擊設計及抗EMC設計 WorkingFrequencyRange200-6000HzJS-615呼叫中音，話務員專用撥號器電話機 JS-615callAlto,operatordedicatedtelephonedialer 此款撥號器因其專業而獨特的耳機通話設計使本通訊裝置具有高保真、 CancontrolthesizeofthebasevolumeCikuanDialerforitsprofessionalanduniquedesignmakesthisheadsetphone communicationdeviceswithhighfidelity, 高清晰的通話性能。 LightsareonacallCallhigh-definitionperformance. 自動接線功能 Flash,muteandlastnumberredialAutowiringfeature 內外鈴聲可選 RingingsoundcontrolInsideandoutsidetheringoptional 音樂MUTE功能 AutomaticfeedlinefunctionMusicMUTEfunction 收線、重撥功能 HairhoopcanbeadjustedTake-up,redialfunction 通話LED指示 Technicalparameters:CallLEDinstructions 15dB接收音量可調 Speakerimpedanceof150ohms15dBreceivervolumeadjustable 超強防雷擊設計及抗EMC設計 WorkingFrequencyRange200-6000Hz jennyliuM:13925538793F:+86-769+81024812E:attdtelephone@foxmail.comReal-timecommunicationtool：MSN:joystar.jenny@hotmail.comSKYPE:jennyliu2588QQ732399163homepage:http://www.0769joystar.com