Description:USB Programmable  LED Message Cool Fan Mini Advertising Fan Cool GadgetSpecifications: Working voltage: USB Interface or DC 5VFlexible Metal Length: Approx. 8.7 inch / 22cmFan Color: WhiteLED Color:GreenBlue LED Fan:Green LED Fan:Features: Blades made from PVC plastic, soft, use safely.Energy efficient, Environmental Friendly.Low Noise, Clear Readable LED Characters.Suitable for PC and Note book with USB Port, Compatible with USB1.0 and USB2.0.Plug and play, just plug in USB Port and then switch on the breeze soft fresh breeze.The flexible metal neck can be adjusted to position the breeze anyway you wish.Can long time rotating the font without jitter and flicker ring.The fan blade is provided with LED soft board, you can change the LED texts and patterns freely as you want!Each support up to 16 characters to displayLightweight and Compact Size, easy to carry!Note:Don't close the spinning fan to face and hair.Don't touch the spinning fan blades or force to stop!Package included: 1x USB Flexible Fan with LED Luminous Letters1x USB Cable(For changing the Led text or patterns)1x CD Driver(Inside has course and software about how to change the Led text or patterns)USB Programmable FileSoftware: