electric bell junior high school physics acoustics teaching aids demonstration experiment equipment science and education instrument vertical electric bell

Note: Please verify the delivery time when placing an order (as the stock is subject to change).

Electrical bell teaching aid, specially designed for high school and junior high school physics acoustics, demonstrates the generation and propagation of sound waves intuitively, solving the pain points of abstract concepts being difficult to understand.

Core selling points: high-precision sound output, safety and durability.

Product advantages: meets national educational standards, CE certification, enhances classroom interaction.

Brand endorsement: Originating from a well-known educational brand, it stimulates students' interest in science and makes learning more vivid and interesting.