【 Instant Cooling】air conditioner neck fan utilizes an advanced NTC chip to reduce the temperature by 30°F in just 1 second. With a superconducting aluminum that is 2.6 times more efficient than traditional aluminum, you can cool your neck and feel a refreshing chill throughout your entire body in seconds. Experience an unprecedented level of immersive cooling.【360°Airflow and Innovative Back Cooling】The 360° airflow design offers an immersive cooling experience. Additional back cooling airflow keeps your back cool as well. This innovative design not only provides powerful airflow but also prevents hair tangling, prioritizes user safety.【3-Speed Fan and 3 Cooling Modes 】Choose from three modes to suit your preferences: Fan Mode, Cooling Mode, or both simultaneously. With separate buttons for easy operation, it also includes an LED display for real-time battery monitoring.【Ergonomically Designed for Comfort】The wearable personal neck fan is ergonomically designed to fit perfectly around your neck, providing multiple points of support to make it feel lighter. Soft silicone materials are adjustable to fit any neck size. The portable neck fan operates at a noise level below 30dB, making it the perfect choice for staying cool and comfortable on the go.【 Long-Lasting Battery】The cooling portable neck fan comes equipped with an impressive 5200mAh rechargeable battery, offering 2-12 hours of use. It features a 5V 2A Type-C charging port and can be used while charging. Whether commuting, traveling, or enjoying outdoor activities, our fan ensures you stay cool and comfortable wherever you are.