In teaching, visual perception and auditory perception are the two main sources of students' cognition and understanding of teaching content. With the increasing popularity of information teaching equipment such as teaching touch integrated computer (commonly known as interactive intelligent tablet in education) in the basic education stage, the teaching content from teachers' blackboard to multimedia materials such as pictures and images has been increasing, which has greatly enriched the visual perception sources of students. At the same time, how to create a better hearing environment for the teaching environment has also attracted more and more attention from the industry.

This problem is mainly reflected in two aspects, one is how to better protect and play the voice of teachers; The second is how to get better protection of multimedia sound effects. Teachers teach hard for a long time, often due to the high frequency of lectures, loud volume and excessive voice situation; In a large classroom environment, the teacher's voice sometimes cannot be clearly transmitted to every corner. This not only causes the teaching efficiency to decline, the absorption effect of students is not ideal, but also directly related to the teacher's health and voice protection. In recent years, a variety of amplification equipment such as microphones and "little bees" have gradually appeared in the classroom to reduce the burden on teachers and help convey information more in place, but problems such as uneven quality of amplification equipment and whistling have also occurred.

On the other hand, the richness of multimedia makes the classroom more lively and interesting. By playing audio and video files, various "sounds" are input into the classroom, which also makes the presentation of knowledge out of the single carrier of books, and the education model is more multidimensional. However, the multimedia sound effect is highly dependent on the equipment, and the sound effect of most teaching products is still far from the real high fidelity level.

These two issues are directly related to the quality of teaching and learning two links, interactive intelligent tablet as an important carrier of information teaching, its industry is attached great importance to "teaching voice", as an important part of the overall solution of intelligent teaching research. In the industry leading brand Touch showed its smart teaching overall solution to the "education voice" a new breakthrough.

Teaching touch is a professional, practical and convenient audio-visual education product specially designed for classroom education informatization and high-quality multimedia teaching. It brings together many scientific research results and will bring new and unprecedented teaching experience for teachers. The expansion of the software has further enhanced the competitiveness of the product, the perfect combination of interactive teaching points and lines, covering all corners of the campus, leading the campus interaction, is the flagship of the audio-visual education products.