Personal Hand-held USB Desk Battery Operated Mini Air Fan with Neck Lanyard for Home and Travel (Black) Package included 1 pcs handheld fan,size:6x3.5x0.75(LxWxH) With a DC USB power cord, easy access to the computer or the use of direct access to the computer or adapter Use 4 AA Battery but this item not include battery With support frame at the bottom of fan,the support frame is pulled out and it can be turned into a small fan on the table With neck lanyard,hang in the chest when go out