Features & Specifications:Material: Glass +WoodDimension: 3x6.5cmNet Weight: 22gCompatible with: USB 1.1/2.0Writing & Reading: 4 - 6 MB/SUSB Service Voltage: 1.8V - 3.6VOperation Current: smaller than 50mAStorage Capacity: 4GB No need power supply Support Windows 7， 10 and XP without device driveSupport solution for Linux kernel version 2.4 or later version Size and Weight:Dimension: 3x6.5cmNet Weight: 22gPackage included:1x Drift Bottle USB Flash Drive Memory Stick1x Metal box