Features1.CompatiblewithFSK/DTMFcallersystems2.50groupsincomingmemoriesand16groupsoutgoingmemories3.BlueLCD;Handsfree,Musiconhold4.16groupsofringingmusic5.3-wayLock:Lock0,unlockandfulllock(free110,120,119,112)6.5levelsofadjustableLCDluminance7.Notdisturbingfunction8.Flashtime:90/95/100/180/300/600/1000msselectable9.8-digitCalculatorfunction;3groupsofalarmclock