I love the easiness of use of this alarm clock : no mess up with `` mode '' , `` set '' and other button to access function I 'll never use . this alarm clock have four position : time set , alarm set , alarm on and alarm off . it be everything you need , and you can not go wrong . the alarm be loud enough and it be progressive . contrary to what the description say , it require 2 aaa battery , not 1 .