Dynamic horn is characterized by good bass elasticity and full midrange. Most headphones use dynamic horn
Moving iron horn, also known as balance armature, was originally used for hearing aids. It is characterized by transparency, high definition and higher price than moving coil headphones
The ring iron earphone has rich sound performance, clear analysis and delicate expression. The price will be higher than the other two. It is a better earphone
It is a multi unit combination. Three to four units are used. It sounds like every frequency will be full.
