Features:Brand New and High QualityFan blade with LED software board、 can display characters or patterns、 and according to the requirement of client、 can support 6 different production around the text、 each support 16 charactersEnduser can edit LED message by software on computer via USB cable connectionCan edit English、 symbols and mumbersPlug and play、 no external power supply is neededSimply plug into any USB port on notebook or PC to create a gentle refreshing breezeProgrammable LED message fan allow edit your own wordingMessages can be kept permanently even when the power is removdSpecifications:Material: PlasticColor: Red/ Green/ BlueSize: 16*10.2*8 cmPower: 4 x AAA battery (Not Included)Package Including:1 X USB DIY Programmable LED Message Cooling Fan1 X USB charge cable1 X USB programming line1 X CD