Established in 2008, efuner is one of the most reliable and professional usb flash drives and power bank manufacturer in Shenzhen, China, we have been cooperating with many world top brands like Walmart,Google,Coca-cola,BMW,Volkswagen,Honda,Maersk,ZIM, etc.We are also a steady supplier for many online dealers, individual self-employers, marketing companies and trading companies, and have steady relations with public sectors like schools, universities, police forces and local government. We stick to "Make the best for you, fast and great" idea toward our clients, always are provided brand flash material from Sandisk,Micron,Hynix,Toshiba and Samsung. We supply full warranty together with CE, ROHS,FCC certification for all of our usb products. As a manufactory,we could provide our customers with the most competitve & reasonable prices in China!We efuner are looking forward to the good cooperation with you.