The idea to invent this product is inspired from the problem of wearing songkok for a long period. Normally, after we wear songkok for a certain period, the area inside songkok becomes humid and hot and this will make the head feel itchy and…

As the future progresses, more and more difficulties are being advanced, however, as we deal with problems that humankind has created, why can't we deal with situations that are natural, such as communicating with people who struggle with hearing…