Fan blade material: plasticOther: StarSwitch type: piano keyColor: white， pink， blue， orange，N.W.:about 0.66lbATTENTION:built-in rechargeable battery with high energy.DON'T USE it when recharging.The longest charging time can not be more than 10 hours! Recharging it ASAP when the wind blast has relented.ONLY USB recharging is accepted.