we are a leading manufacturer for RC ESC both for car and aero mdoels,we have independdent tech. dept, our technicians are coming from the first group RC model area in China when RC model beginns in China, so our technique is nature.Mainly we accept OEM production, we are the main RC ESC supplier for main big models manufacturer in China, and ODM also welcome.Above is a brief introduce of us, but we think our product is the most strong introduction of ourself. We are the best choice of you.