Features:The LED Clock Fan is powered via a standard USB connector.LED analogue clock face displays on spinning fan blades.Shows moving hour， minute and seconds hands.Has a flexible iron goose neck， allowing for the angle of the fan to be easily changed.USB power DC5V: no external power supply is needed.It can be used in car / Caravan / Van with USB port.Specification:Led Light Color: Green， RedFan diameter approx: 8.8 cmLength approx: 40 cmWarning:1.Don't close the spinning fan to face and hair.2.don't touch the spinning fan blades or force to stop!3.the fan will be broken if press the fan head heavily!4.Please turn off computer when be off for long time!5.Regarding the light up fan series， the light up contents may be shake， appear wrongly or disappear， after over 4 hours continuous using. Only turn off for stop about 5 minutes， it will be normal!Package included:1 X USB LED Clock Cool Fan