Doro PhoneEasy 100w Duo Perfect easy to use cordless phones with easy to read display and extra clear sound. Specifications: Pre dialling Speakerphone Keylock Call timer GAP compatible 5 handsets per base possible Menu navigation Range indoor: 50 m Range, up to: 300 m Out of range warning Clock and Timer function 5 Monophonic ring tones 5 Polyphonic ring tones 5 Ringer volume settings except off 5 Ringer off setting