Inserting the card into an educational flashcard is an important loop function that allows you to read and learn again and again without having to reinsert the card. 3.5 x 4.2 inches - Handheld size that even small children can use separately. This educational toy is equipped with a built-in rechargeable battery that lasts 6-8 hours and only takes 2.5 hours to fully charge without needing frequent charging. Keeps children safe. The small learning card contains 112 cards - 224 pages and is an ideal learning resource to help children learn the alphabet, colors, shapes, and recognize the objects on the card. This educational toy is suitable for children under 9 years old to learn new words, practice listening, expand vocabulary, and improve cognitive abilities. Educational flashcards allow children to put down their phone and iPad. The screen-free design reduces the time children spend touching screens and takes care of the child's vision. Selection of teaching materials / classroom games / preschool / kindergarten, home education. Baby Flash memory cards support USB charging, automatic shutdown, adjustable volume. A fun way for children to learn their letters and shapes. Suitable educational toy for toddlers.