Adjustable Speeds: Brushless advanced motors support several speeds wind for any of your purposes, the first speed is a very comfortable breeze for cooling indoor, the rest speeds blows air from medium to high as a cooling solution for the hot day outdoor activities Built-in Recharageble Battery:the necklace fan can be powered by any Power Source with USB output like Power Bank, Laptop, computer, AC Adapter and etc Hands-Free and Wearable: just wear it and stay cool without constantly holding a heavy handheld fan, perfect for outdoor festivals, theme park, watching sports, mountaineering, hiking, beach trips... a for hot flashes Very cute design: it keeps you cool and comfortable while having an enviable and good-looking neck fan. Mini in Size, Big on Performance: , foldable and flexible arms, supports 360 degree angles, you can put it in your bag,hang it on your neck,sit it on you desktop/table,set the height and wind direction at will,even share the coolness with your friend Power source: lithium battery Noise: 45-50dB Rated voltage: 5 Rated power: 5 Wind speed gear: 3rd gear Operation mode: normal button Whether to support charging: Yes color:Purple Black Material: ABS Package Contents: 1 x neck fans 1 x Charging cable Only the above package content, other products are not included. Note: Light reflection 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.