I work as the legal guardian to the elderly who be deem incompetent by the court . I buy this for one of my client who be 96 and reside in a nursing home . she be bedridden and have difficulty see the clock so I get she this one with large , bright number and she love that the power can go out and she do not have to wait for staff to come and reset it . when I give it to she I just have to literally plug it in and the correct time be set immediately which just astonish she ! : -rrb-