Panasonic DECT 6.0 Plus cordless system3 HandsetsTalking caller IDCall block and silent modeLarge easy to see displayIntelligent ECO mode saves energy and batteryMessage counterEqualizer: customized sound systemNonslip handset designEasy to see, easy to use: large lighted display and keypadExpandable up to 6 handsetsRinger ID18 Minute all-digital answering systemHands-free speakerphone on handset4 Way conferencingIntercom between handsetsShared phonebookHigh quality ringer 5-melody/5-tone on handsetLocator button to find misplaced handsetsWall mountable base unit and chargersRechargeable AAA Ni-MH batteriesKXTG4133M