Neodymium-Iron-Boron magnets and common difference between ferrite magnet

Ferrite magnet is a ferromagnetic metal oxides. Electrical characteristics, ferrite resistivity is much larger than the magnetic materials of metals, alloys, but also has a high dielectric properties. Magnetic properties of ferrite at high frequency, have a higher permeability. Thus, the ferrite has become a high-frequency weak field uses a wide range of non-metallic magnetic materials. Belong nonmetallic magnetic materials, is iron oxide and other one or more metal-oxide composite oxide (or ferrite). Magnetic 800-1000 Gauss usually, often applied to the speakers, speakers and other devices.