1.usb flash drive 2.OEM plastic usb flash drive 3.Storage:512MB-32GB 4.CE,ROHS,FCC ... it's very hot to used with the mini speaker;3, Capacity: 512mb, 1gb,2gb,4gb, 8gb, 16gb, 32gb ... being read or written;6, Write Protection Switch;7, Service: logo printing, file preloading, auto-run, space partition, ... will send by airfreight, seafreight or as required. USB Flash Drives/stick for 1gb 2gb 4gb 8gb 16gb