• Are batteries included with the Lights & Music First Book?

    No batteries are not included.

  • Which batteries should I use with the Lights & Music First Book?

    3X AAA 1.5V Batteries.

  • How do I insert batteries to the book?

    To insert batteries, unscrew the battery compartment cover (on the back of the battery compartment at the edge of the book) using a Phillips Head screwdriver. Insert 3 X 1.5V AAA batteries, ensuring correct polarity. Replace the cover and screw tight.

  • Which tunes are featured in the book?

    10 consecutive minutes of Chopin classical music for stimulation, and 10 consecutive minutes of Hayden classical music for relaxation.

  • Which modes exist on the book?

    Off, silent mode (lights only), relaxation music and stimulation music.

  • How do I change between the book modes?

    The slider changing modes is located on the side of the book opposite the battery compartment.

  • What is the date code and where can I find it on the product?

    The Yookidoo date code helps us track the production date of the product. The date code of the Yookidoo Lights & Music First Book is on the product’s sewing label. It is a 5 digit number and ends with the 2 letters:  TF / LD.


  • The lights of the book are slow.

    Change batteries.

  • There is music but not lights/ There are lights but not music.

    1. Change batteries.
    2. Contact us.

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