FSK/DTMF双制式兼容 FSK/DTMFsystemcompatible,FSKauto-adjustrealtime电子台历 Electroniccalendar,displaysrealdate/time,clockandweek,auto-timerforconversation50组来电号码储存，9组去电号码储存 Record50incomingcallsand9outgoingcall,whichcanbereviewed,quickchecked,calledbackanddeleted智能数码音量调节 Volumedigitallyadjustable13种铃声可选 预拨号功能 Pre-dial,editacalllikemobileoperation液晶亮度4级可调 LCDcontrastadjustable(4levels)P/T转换，暂停，重拨P/T,pause,redial防盗打，抗无现干扰，电子防雷Protectagainststealdialing,Anti-EMI,thunder-proofdesign闪断时间可调为1000ms,600ms,300ms,180ms,120ms,90ms;Flashtime1000ms,600ms,300ms,180ms,120msand90msselectable,useforallkindsofexchange音乐保留功能 Holdonmusic,fullhand-freedialingandconversation长途锁控lockthenumberledby 0