Knowledge

​In the printing process, the printing signal bar shall be used to detect the restoration of the dots, and it shall be ensured that 3% of the dots can

The current printing methods of audio books are mainly divided into four-color printing and five-color printing.

​According to the sounding principle of audio books, the logic waveform diagram composed of dot matrix should be printed with black ink

​Early childhood education can be divided into broad sense and narrow sense.

​Audio books are educational books that help children develop visual, auditory and practical skills.

It has the functions of point reading, simultaneous translation, recitation and repetition.

The book holder on the shell is used to connect the voice book with the shell by keeping the position of the back cover of the voice book

​The existing sound book, or talking book, is a book with a variety of sensors.

In the evolving world of educational toys, few items blend vintage charm with modern early learning quite like the story record player. These adorable