The key to our success is "Good Product Quality, Reasonable Value and Efficient Service" for earphones with jack, type c usb connector, 2.1 mm jack plug, 4.5x4.5 tact switch,2.6x3x0.5 tact switch. For further inquires please do not hesitate to contact us. Thank you - Your support continuously inspires us. The product will supply to all over the world, such as Europe, America, Australia,Pretoria, Miami,Indonesia, Sri Lanka.Our company has a skillful sales team, strong economic foundation, great technical force, advanced equipment, complete testing means, and excellent after-sales services. Our products have beautiful appearance, fine workmanship and superior quality and win the unanimous approvals of the customers all over the world.