Wide range of applications: use for both indoor and outdoor activities, office, subway, travel, camping, picnic, hiking. Air volume level 3: strong wind - natural wind - soft wind Silicone fan blade, soft and does not hurt. It can be safely used by children and adults. Wingless design, you don't have to worry about your hair being caught by the fan blades. Equipped with a 3000mAh battery, the battery life is about 10 hours. Semi-closed air inlet, dust and sweat resistant. Rated Input: 1A Battery Capacity: 3000mAh Rated Power: 5W Duration: 3-10 Hours Interface Type: Lithium Battery Material: ABS Color: White/Pink/Blue Package Contents: 1 x Neck Fan 1 x USB Cable 1xstrap Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement error is +/- 1-3cm.