The structure of those fans is unique and fashionable. Brushless DC motor, bare cooper to guarantee the immoderate winds and long-life. Intelligent management system, dependable performance, which is completely reasonable and simple operation. A legitimate portable fan with integration of design, straight forward appearance and steady structure. Suit for Outdoor Camping Student Desk Travel Home and Office Colour:black Material:plastic Power Supply: 1 x 18650 battery (not including) Package Contents: 1 x Mini fan Only the above kit content, diversified products aren't included. Note: Light capturing and diverse displays could cause the colour of the thing within the photograph a little diversified from the real thing. The dimension allowed error is +/- 1-3cm.