The speaker offers 27 soothing sounds, the soothing mode offers lullaby, white noise, ocean, piano and susher and a heartbeat to help your baby fall asleep quickly and the entertainment mode offers solo, accompanying, sand and Animal sounds to interact with your baby baby. The small night lights in 7 colors make your night care easier and will definitely help your child eliminate the fear of the dark and sleep well. Adjustable volume control helps your baby fall asleep without letting others sleep. This device is an essential accessory for a crib to ensure a peaceful home for the whole family. 3 timer and amp memory functions; The automatic switch-off timer can be set to 15/30/60 minutes or continuously as needed. The memory function automatically restores your previous volume and timer settings, you don't need to adjust them every time. The device is FCC, CE and RoHS certified and there is no risk of accidents. [4 entertainment modes] Built-in 4 entertainment modes to choose from, gentle shaking will be ring drumming, YOU can train the baby's hearing, the more hand shakes faster, the faster the music, promotes the baby's sense of rhythm. This speaker has a recording function, which allows the mother to pre-record the sound of the baby, when the baby is crying, there is the mother not there, the father can play the recording to comfort the baby, the first time the mother must be there .