I bought two of these phones as an additional supplement to the E500H, and happy about the easy handling with for example the registration to the base station. The comfortable transfer the entire phone book entries on each handset worked very well, you do not have to program each handset individually. My parents, both in their mid 80, are at ease with their new telephone system for small briefing. For seniors, the ideal large buttons, the display with adjustable font size, the 4 speed dial keys, hands-free and the adjustable volume of the handset.