... DB connectors, RCA jacks, hooks, etc. Our Headphone Adapter as well as other products mainly sell to North ... other foreign countries. Our monthly production capacity of Headphone Adapter is 1,000,000pcs, but this is ... is even larger, we can surely do more Headphone Adapter than present. Our factory has also been ... within the first fastest time. Universal Headphone Adapter with 2.5mm Male to 3.5mm Female