Amazon.com: HomePlus Neck Fan, 3 Speeds Portable Neck Fan with Cooling Amazon.com: Hotsales Neck Fan, Hands Free Bladeless Neck Fans Portable Amazon.com: Vaneless hanging neck fan, wearable cooling fan with 360 Amazon.com: DATTOY Portable Neck Cooling Fan 6000mah Rechargeable Amazon.com: DATTOY Portable Neck Cooling Fan 6000mah Rechargeable. A Wearable Climate of Refined Comfort Embrace an unprecedented realm of personal cooling with this portable neck cooling device, a true innovation in personal climate control. Designed for the discerning individual, it transcends conventional cooling, offering a veritable air conditioned embrace that ensures unwavering composure and comfort, even amidst the most demanding environments. Revolutionary Semiconductor Cooling Experience true refrigeration with advanced NTC semiconductor technology and superconducting cold aluminum. This intelligent system delivers a profound chilling sensation, capable of lowering temperatures by an impressive 15C in mere seconds, providing icy relief even in 40C outdoor conditions. ? All Encompassing Turbo Cold Air System Engineered with a sophisticated turbo cold air system, it circulates refreshing airflow around the back, top, and bottom of the neck, ensuring comprehensive and immediate body cooling that extends beyond mere fanning. ? New Energy Battery for Enduring Performance Powered by a high capacity 5200mAh dual core lithium battery, mirroring the advanced cell technology found in new energy sports cars. This guarantees significantly extended and durable battery life, with increased single capacity (45%) and energy density (30%). Featherlight & Ergonomic Design Crafted for ultimate comfort, its lightweight and ergonomic design ensures a seamless fit, allowing for prolonged wear without discomfort. Experience cooling that is both potent and imperceptible. Intelligent Memory Gear Function Featuring a 3 speed refrigeration air system with a smart memory function. The device intelligently recalls your last preferred setting upon activation, delivering an effortlessly personalized cooling experience every time. Specifications: Cooling Technology: Semiconductor refrigeration with NTC technology and superconducting cold aluminum Battery: 5200mAh Dual Core Lithium Temperature Reduction: Up to 15C in seconds Airflow System: Turbo Cold Air, surrounding neck coverage Speed Settings: 3 speed refrigeration air Features: Memory gear function, Lightweight, Comfortable, Quiet operation Dimensions: 22. 9 cm (Length) x 19. 9 cm (Width) x 9. 0 cm (Height) Ideal for: Outdoor activities, Sports, Travel, Hot climates, Personal cooling