Educational System to Deliver Music to Babies During Pregnancy With Japanese Instructions Functionality Confirmed (Batteries not included) Instant Purchase OK Home Cleaned No Pets, No Smokers Anonymous Delivery Used by only one child and stored with care, but the cover has some fuzziness, although there are no issues with use. 【What is BabyPlus?】 The world's first scientific prenatal education system, "BabyPlus," developed by doctors based on over 20 years of research, is designed to have the baby listen to 16 scientifically developed sounds daily according to a lesson schedule. These sounds are synthesized based on the "mother's heartbeat" - the "language" that the baby in the womb understands best - which is naturally heard in the mother's womb. As the lessons progress, these "heartbeat-like sounds" gradually become more complex, and the baby begins to develop the ability to distinguish sounds and learn by recognizing "Oh, that sounds different from Mom," and "Ah, there's that sound again." 【BabyPlus Effects?】 According to research, the main characteristics of children raised with BabyPlus prenatal education are: calm, less crying/fussing at night, good at self-soothing (e.g., sucking fingers), sociable and not afraid of new environments, easily adaptable to group life, intellectually curious, and able to concentrate for extended periods. BabyPlus prenatal education has been experienced by over 150,000 people worldwide. 【How to Use】 BabyPlus is safe and easy to use. Insert the main unit into the dedicated pouch belt with the speaker part facing inward, and attach it to the center of the abdomen. Use it for 1 hour each morning and evening, following the included lesson guidelines. It is more effective to use it at the same time every day. For the best learning results, it is recommended to start using it between the 18th and 32nd weeks of pregnancy.