Litop 32GB Red Heart Shape Design USB Flash Drive USB 2.0 Memory Disk with 2 Free Straps Each package includes one metal necklace, 1 neck strap and 1 wrist strap Easy to use, just plug in and play directly, no need any extra power supply Operating system supports windows 7 /8, Vista/XP/2000/ME/98/910, Mac OS 8.6 above and Linux, etc.; High speed in writing /reading transfer Fashionable design, the USB flash driver looks like a red heart; 100% quality guarantee