Onepalace Portable Alarm Clock Camera DVR with Motion Detection This digital alarm clock with camera and motion sensor is a perfect combination of an undetectable alarm clock and a practical surveillance gadget. Beep sound of the alarm clock get louder from slight to medium,and then from medium to loud;the whole duration can last for 1 minute. 5 key operations:HR,MIN,SET,LIGHT,and TALK/SNZ. Two optional hourly chime functions. Multiple alarming sounds for option;beep,cock crowing,and five sweet songs.