In recent years,in order to improve the user experience of listening significantly,many earphone manufactures are adopting Metal Injection Molding(MIM)technology to produce complex earphone shells.Uk earphone manufacture RHA has promoted their flagship earphone product T10i which is the first stainless steel drive shell earphone in the world,the shell earphone is according with human body engineering. This shell earphone would be promoted into market by large-scale and is composed by 2 MIM stainless steel components.
RHA said that MIM is the only way to realize the pinna shape of T10i headphone,and durable stainless steel material could be used if by MIM. So T10i design is not only comfortable for human body, but also has a unique sound and air flow characteristics.
After injection shaping,the shell earphone green parts would be degreased and sinteringed.After that,the precision machining would be done by hand and beautiful brushed surface would be appeared after surface treatment.