The MP3 Mobile Unit with night light is an absolute highlight for the baby crib! Compatible with all Fehn music mobiles, this music mechanism adds that special touch to the bedtime ritual. It invites the baby to watch, listen, and dream. The night light, music, and rotation can be controlled individually or in combination using the buttons on the unit. The music mechanism plays the most popular Fehn music box melodies – you can also add your own songs via the MicroSD memory card. With the repeat control, individual songs or the entire playlist can be played on a loop. The sleep mode automatically turns off the electronic music mechanism after a while, ensuring restful sleep for the baby and wonderful dreams. Comes with a MicroSD memory card – can be personalized. Requires 2 AA batteries – not included. Operation should only be performed by adults. A perfect gift for a birth or baptism. Tested for safety by independent testing institutes.