Aluminum alloy + PC plastic, aluminum alloy shell with frosted surface treatment, do not touch fingerprints, strong and durable, interface: USB 2.0 + micro SD card interface, the interface standard (TF) : USB, compatible with USB1.1, start, support memory card: MicroSD, TF, the biggest can support 128 g, operating system requirements: Windows xp, support, images, audio, video, etc, with TF truck on the plug and play, one-piece card slot, avoid repetition and plug, saving trough, mini design, no more than 30 mm to carry does not occupy a space, working temperature:- 20 ° to + 60 °, storage temperature: - 20 ° to + 70 °, humidity: 20% RH to 85% RH, support Micro SD, Micro SDHC, Micro SDXC flash CARDS.