General description This bladeless monitor screen fan is a portable air cooler designed for convenience and comfort. It features a hanging design that allows for dual-use, making it suitable for various settings. Technical specifications Gear adjustment: 3 adjustable speeds Charging mode: USB Battery capacity: 4000mAh Material: ABS Color: Black Dimensions: Measurement allowed error is +/- 1-3cm Compatibility and accessories Can be connected to: Power Bank Desktop computer Tablet computer Household socket (requires a charging plug, such as a mobile phone charging plug) Other information Package Contents: 1 x Hanging fan Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product.