UDP usb flash disk,necklace usb driver,compact flash usb,mini usb disk JD-SS113 Specification: 1.Product material: metal 2.Dimension:32*14*5.5mm 3.Package dimension:107*72*30mm 4.Length of lanyard: 60cm 5.Net weight of product:11g 6. Net weight of lanyard:3.4g 7.weight of package:77.8g 8.High reading and writing transfer rate(1GB):11650/5030 High (2GB):19893/9883 If you are interested in our products,you can contact me!