This bladeless neck fan features an innovative ring-shaped wind design for 360° surround airflow, eliminating traditional fan blade hazards. Its ergonomic, foldable design collapses to the size of a mobile phone for easy portability, making it ideal for summer outdoor activities, commuting, and sports. The fan utilizes bladeless turbocharging with airflow multiplier technology for a soft wind beam that won't entangle long hair, ensuring safety for children. It boasts three intelligent digital displays showing real-time power and wind speed. With a 4000mAh high-capacity battery, it offers all-day life with 3 hours of USB fast-charging. The library-level mute technology with a built-in noise reduction motor operates at a maximum of 35dB, ensuring quiet use in offices or during breaks. Dual airflow modes allow for simultaneous front and back wind or directional strong wind on one side. The humanized design includes a food-grade silicone neck brace that is breathable and won't pinch hair. It folds 180° for easy storage in bags or pockets and has a high waterproof level, making it resistant to sweat and light rain.