1,Bracelet Usb flash drive, 2,Free logo print, 3,Capacity 32MB-64GB, 4, ... Autorun,preload data,available. 5,CE,ROHS,FCC USB flash drivesNo:Ujmd-051(C) SIZE:21(L)X1.9(Diameter ... .4 or above and Macintosh 8.6 or above6)With boot, support encryption, space partition, auto run (no calibrate function), USB ...