Bladeless fan design: Twin turbo fan blades double the wind energy and provide a 360-degree cooling experience.3 Wind speed adjustment: The newly designed fan has low/medium/high 3-speed options. The high-performance motor can adjust the number of gears to generate wind of different intensities while maintaining a fairly low noise level (36-45db).Rotatable wristband, comfortable to wear: The neckband fan is lightweight, made of soft and skin-friendly silicone material, and can provide comfortable neck protection. The neckband can be flexibly rotated to adjust the most suitable wind direction, and will not feel discomfort or restraint when the fan is hung for a long time.USB rechargeable fan and LED display: Built-in 4000mAh rechargeable battery, can work for a long time. Comes with a 5V/2A USB cable, which can only charge for 4 hours, and the fan can last for 3 to 7 hours. The LED display can not only display the battery level, but also remind you to charge the fan in timeMultifunctional: This portable fan is very suitable for personal cooling, office, outdoor activities, such as camping, traveling, hiking, climbing and watching sports games, etc.Product name: Double head hanging neck fanBattery capacity: 4000mAh (14.8WH / 3.7V)Product weight: 340gRated input: DC5.0V-2.0AFan speed: 2m / s MAXNoise: 36-45dbRated power: 5WLife time: 3-7 hoursCharging time: about 4 hoursPower supply mode: USBMode of operation: mechanicalColor: white/pink/greenMaterial: ABS + TPRSize: 201 x 192 x 60MMPackage Contents:1 bladeless fanOnly 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 to be slightly different from the real item. The allowable measurement error is +/- 1-3cm.Due to the difference between different monitors, the picture may not reflect the actual color of the i