Jinghao, a longtime hearing aid manufacturer, makes the entire range of hearing aid styles and offers a wide choice of colors and designs. Typical features include noise reduction and feedback cancellation. It is a fast growing manufacturer in the fields to R&D,design and sell the advanced great Jinghao® brand digital hearing aid,OTC hearing aid,bluetooth hearing aid,hearing amplifier and personal sound amplifier (PSAPs) hearing devices. As the professional hearing aids products...