? Powerful Nature Wind: This Mini Watch Fan Has 3 Wind Speed Adjustable, You Can Simply Press The Power Button To Change The Wind Speed;Owered By Upgraded Rechargeable Polymer Lithium Battery, Which Can Support The Mini Fan Run 2-3hours. ? Led Color Light: Built In Led Colorful Change Light, Lights Will Automatically Change Colors.It Can Be Used As A Warning And Lighting At Night, Like Colorful Stars. ? Detachable Design: The Fan And The Watch Can Be Detachable And Separated, And The Angles Can Be Rotated 360° Left And Right, Wearable Also Be Placed On The Desktop, This Design Is More Humanized And More Convenient For Your Needs.