- INSTANT COOLING ANYWHERE: Our neck air fan offers immediate relief from heat with its upgraded back air outlet for 3D airflow. Enjoy a refreshing breeze to your face and back at the same time. Perfect for hot summer days at work, during outdoor activities, or while relaxing at home. The extra-large semiconductor refrigeration plate provides rapid cooling, dropping the temperature within seconds for instant comfort. - POWERFUL SURROUND COOLING: This wearable air conditioner features an advanced NTC chip that can lower the temperature by up to 30°F in just one second. The superconducting aluminum cooling efficiency is 2.6 times higher than standard aluminum. With four turbo motors, it delivers true 3D airflow. Choose from five levels of refrigeration and wind speed to customize your cooling experience, all displayed clearly on the LED screen. - PORTABLE & ADJUSTABLE: Designed for comfort, our neck fan is lightweight and easy to wear. The adjustable neck width ensures a secure fit for all users, and its compact size allows for convenient transport in your backpack. The bladeless design eliminates the risk of hair entanglement, making it ideal for commuting or traveling. - LONG-LASTING PERFORMANCE: Equipped with a powerful 4000mAh battery, this neck fan provides 3-6 hours of continuous cooling on a single charge. Whether hiking, working, or relaxing at home, it keeps you comfortable throughout the day. The whisper-quiet operation ensures you can focus on your tasks or unwind without distractions. Recharge fully in just 2 hours using Type-C charging.