USB Fan Watches Charging Fans Portable Children Fan Practical Durable Mini Fans Student Gift Blue

Battery voltage: 3.7V Output voltage: DC5V colour:blue material:ABS Package Contents: 1 * Fan Watch 1 * USB data cable Only the above package content other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.