This smart dect phone is designed with big buttons and an easy to follow set up it is also fitted with 22db amplification adjustable ringer volume 5 levels making it the ideal phone for anyone with hearing difficulty or limited dexterity with more than one handset you can use the intercom function between handsets supplied with 2 x ni mh 12v 600ma batteries and an adaptor plugadjustable incoming volume control up to 22dbphonebook for up to 50 numbersadjustable lcd screen contrast clock