Extended Usage Time with Light Feature: Designed with power saving technology, this attachable cooling unit proposals 3 6 hours of continuous use at lowest setting Complete energy restoration via USB connection requires 3 4 hours Versatile Wearing preferences: Includes neck strap and stand Made with lightweight composite materials ( 305g), its secure waist attachment stays stable Mechanisms & Sturdy Construction: Contains battery security features automatic shutdown when reaching full capacity or low power Compact 78x84x60mm size ( 308g) allows easy carrying, making it suitable for kitchen areas, farming locations or mobile usage with consistent cooling Practical Outdoor Companion: Combines efficient temperature regulation ( 3600mAh battery) with secondary lighting Effective Temperature Control with Multiple Settings: This waist mounted cooling device features a multi design generating up to 11 meters per second air movement for rapid heat dissipation With responsive buttons to choose from numerous speed settings, it provides customized comfort for different activities while maintaining low noise output between 36 45 decibels