Hello, Ladies and Gentlemen. We are professional headphone manufacturer with more than 15 yrs experience. Our main products multimedia headphone, dj headphone, bluetooth headphone,gaming headphone, usb headphone, in-ear earphone,etc. Products comply with ISO9001, CE, ROHS, FCC & REACH directives.We offer products to clients such as SONY, VIVANCO, HAMA, IMATION, POLAROID, Q2 etc. We're the SONY's producer, and the Apple MFI member, and the 4th golen member of Globalsources.The OEM order also is accepted by us.Meanwhile some of my brother's legit manufacturers can supply board hover, drones, vivo mobilephone, silicone rubber watch, speakers, guitar and it's accessories, TV Box, CAR DVD Navigator etc.