EASTBULL USB Flash Drive Feature Specifications Chip Grade A. Capacity 16GB Interface Type USB 2.0, backwards compatible to USB 1.1. Compatibility Desk PC, Laptop, Mac, Tablet, Speaker with USB port. Operating System Windows 7/Vista/XP/2000/ME/NT, Linux and Mac OS. USB Flash Drive Size2.2 inches 0.8 inches 0.4 inches Fold Hand Wrist Strap Lanyard Size 7.09 inches Package Includes 10 flash drives 1x Black, 1x Blue, 1x Gray, 1x Green, 1x White, 1x Orange, 1x Purple, 1x Yellow, 1x Pink, 1x Red. 10 Lanyards 1x Black, 1x Blue, 1x Gray, 1x Green, 1x White, 1x Orange, 1x Purple, 1x Yellow, 1x Pink, 1x Red Friendly Tips The actual available capacity for data storage is less than what is listed on the products,because some of the listed capacity on flash storage device is used for formatting and other functions. Services Thank you for choosing the EASTBULL USB Flash Drive. 1. Please feel free to leave us message if you have any questions. We will reply to youwithin 24 hours and offer you our best services. 2. If you are satisfied with our products, please leave us your valuable feedback or product review. We appreciate your support. 3. Before you leave negative feedback, please contact us first about your problem and we will reply to you ASAP to find out the best way to resolve it.