Instant 3S Cooling Fan: The cooling fan has an integrated semiconductor cooling chip, which cools at a rate of 50F-60F per second, and the neck air conditioning fan cools, refreshing the whole body in 3 seconds. 2 in 1 design: 2 cooling modes and 3 levels of wind speed, choose different working modes at different times. 360 vents and the powerful turbo fan provide a super powerful air flow. Bladeless design effectively prevents hair from getting stuck Low noise:The neck fan is a portable neck fan with the latest noise reduction technology (<20 dB), so you will not be disturbed by loud noise and enjoy a perfect freshness, ideal for daily work and sleep. Long-lasting battery:Rechargeable USB 2000mAh battery, can last up to 10-12 hours in fan mode and about 2-4 hours in cooling mode. USB Type-C port for easy charging anytime, anywhere. Hands-free neck fan:This cooling plate neck fan keeps your hands free while keeping them cool, enjoy personal cooling while working, cooking or walking, improving efficiency.