- New upgraded portable neck fan with innovative turbo blades and wind hole design increases air volume by 70%, delivering fast cooling and lasting comfort in hot weather. - Five airflow modes provide precise control: weak, low, medium, high and super high. Press the power button to adjust to your preference. A built-in 4000mAh battery offers 8 to 12 hours of operation. - Ultra quiet operation thanks to the latest noise reduction technology. The bladeless neck fan is USB powered and can be charged by computer, mobile phone charger, power bank, and more. Safe for children and the elderly, with no hair getting caught. - Dual-axis adjustment with a 45 degree angle ensures comfortable wear for a range of neck sizes. When in use you don’t need to worry about hair tangling on the blades. - Practical applications: ideal for outdoor activities such as walking, running, hiking, or events on hot days; convenient for daily commuting and travel; suitable for desk work or indoors when air conditioning is insufficient.