Voberry Vintage 4GB Metal Pure Copper Heart Key Design High Speed USB Flash Memory Pen Disk Drive Stick USB 2.0 Interface USB Pen Drive High write/read speed;Compatible with PC, notebook, MAC USB Service Voltage: 4.5V-5.5V Operating System: Win98/ME/2000/XP/Vista/7, Mac OS 9.X/Linux2.4 Interface Type:USB 2.0 Voberry is a protected Trademark