Electronic Model of Hearing Sense The faster the handle is

The faster the handle is turned the brighter the bulb will get

this flask is perfect for carrying ample amounts of your favorite drinks

Net for insect specimen capture

Compact and Lightweight: Designed to be compact

Dimensions: 33 x 23 cm

Electronic Model of Hearing Sense The faster the handle isSize: 490mm x 230mm x 860mm. Human Electronic Model of Hearing Sense Biological Teaching anatomy model. Simulation demonstrates the Hearing Sense. This model shows normal hearing, a few hearing impairment and conduction process. The model is made according to the anatomical principle. The model is a combination of mechanical mechanics and synchronous electronic circuit program control, which can dynamically simulate human hearing sense. Power supply: