This cute night light features relaxing sounds, soft and calming tunes, dim lights to create the right atmosphere for your baby to sleep. To aid sleep the night light features white noise (noises that help mask outside noise), nature sounds (ocean waves, raindrops, soothing water or heartbeats, and a choice of 8 calming lullabies. The night light and sound module can also be removed from the baby Seal and used on its own on a bedside table or attached to a cot or pushchair. , , 3 modes: Short melody (white noise or a lullaby plays for 10 seconds); Long melody (each lullaby plays for about 1 minute and can be repeated to last a total of 14 to 16 minutes); White noise (each sounds plays for about 2 minutes, for a total of 10 minutes playback time).