Neodymium magnet, also known as NdFeB magnet, its chemical formula is NdFeB, is a man-made permanent magnet, that has the strongest magnetic force so far. Neodymium magnet was invented in 1982 by Mr. Sagawa and others of Sumitomo Special Metals Co., Ltd. It is known from its chemical formula that it is mainly composed of chemical elements such as neodymium, iron and boron. Neodymium magnets with strong magnetic properties are widely used in electronic products, such as hard drives, mobile phones, headphones and so on.

　　NdFeB magnets are the magnets with the highest commercial performance found at present. They are called the magnet king. They have extremely high magnetic properties and their maximum magnetic energy product (BHmax) is more than 10 times higher than that of ferrite. Its own machining performance is also quite good. Operating temperature up to 200 degrees Celsius. Moreover, its texture is hard, its performance is stable, and it has a good price/performance ratio, so it is widely used. But because of its strong chemical activity, its surface layer must be treated.

　　Application of electronic products:

　　Nowadays, neodymium magnets are developing rapidly and are widely used. It has the potential to replace traditional pure iron magnets, Alnico and Samarium Cobalt magnets in many fields such as electric motors, instruments and meters, automotive industry, petrochemical industry, and magnetic healthcare products. Can produce various shapes: such as disc magnets, ring magnets, rectangular magnets, arc magnets and other shapes of magnets. Everyday electronic products, such as hard drives, mobile phones, headphones, etc., all have neodymium magnets.

　　Professional audio applications:

　　Neodymium magnets play an increasingly important role in the professional audio field. Due to the small size, light weight and large magnetic flux of neodymium magnets. So it is very suitable for professional performance stage amplification and sound reinforcement in large stadiums. Among its many professional audio brands, TM brand professional audio has developed a variety of high-quality neodymium magnet units through large experiments and has developed a high-power, compact and lightweight neodymium unit for the upgrade of traditional line array audio units. Magnetic unit line array performance speakers.