... size, light weight, fashionable design.* USB Standard interface, no extra power supply required. * Interface: High-speed USB 2.0* Weight: ... : 20%~90% * Storage Relative Humidity: 20%~93%3.Logo solutionssilk screen, laser engraving, hot stampingfull color printing4.OEM/ODM ... We provide OEM/ODM services for our global clients. Including logo printing (silk screen, laser engraving, hot stamping etc.), ...