content: This is the greatest thing!! We use it every night to put our 12 week old daughter to bed after her lullaby. She goes into her crib wide awake but this is so calming and soothing to her that 9 times out of 10 she falls asleep within 5 minutes. The variety of settings is great too - we use the bubbles (and lights and music) if she's really awake and the lights and music only if she's already a bit sleepy. It is truly wonderful! We traveled with it as well and it really held up, in checked baggage on the airlines through three connections each way. If I were going to change anything it would be to make the volume go even a bit lower, but this is very minor. Overall we love it and would be lost without it! I keep spare batteries on hand at all times!