1. Material: ABS/PP/electronic components 2. Battery voltage: 3.7V-4.2V 3. Output power: 4W 4. Input voltage and current: DC5V/1000mAh 5. Battery capacity: 4000mAh 6. Charging time: about 6 hours when fully charged 7. Working hours: the first gear can be used for about 27 hours; the second gear can be used for about 13 hours; the third gear can be used for about 6.5 hours; the fourth gear can be used for about 4 hours 8. 5 turbine blades, which can make slow wind softer and faster wind wider 9. Separated fan blade design, easy to clean 10. Can be used in dormitory, camping, bedside table, desktop, office 11. Can rotate 360 degrees 12. Product size: 200.5x87x203mm 13. Weight: 540g

http://olla.gr/f35-mini-adjustable-usb-charging-desktop-electric-ceiling-fan-4-speed-control-green/