it have `` 20 soothing sound '' many of which be enough to wake I up in the morning when that feature be use - especially the chime and the steam train engine . I usually use the 60 min . sleep timer and fall asleep to one of the myriad of water sound : ebb tide , surf 's up , rain , brook , and a few more . a few of they have realistic sound seagull , so I do not use those . -lrb- a good friend be dive-bomb by a seagull right into he mouth while on a fishing trip - I take on he antipathy towards seagull . -rrb- my husband and I have have a sound machine by another company for over 10 year - it finally give out . I also appreciate the light clock , that we old one do not have . this be a great buy -- enjoy !