Design: With an 8000mAh integrated electricity source and USB power input capability, this device delivers extended action per cycle while maintaining minimal power usage for cost effective thermal management Adjustable Comfort Settings: Choose from 4 selectable speed levels to control cooling intensity, enabling customized comfort whether you need mild ventilation or more pronounced temperature Low Technology: The innovative quiet mechanism produces gentle air circulation without disturbing meetings, tasks, or sleep, making it perfect for work environments, study spaces, or bedrooms Portable Wearable Cooling Solution: This ABS built individual cooling accessory features a lightweight frame that perches comfortably around your neck Versatile Usage Scenarios: Excellent for nature adventures, indoor professional spaces, or evening wear, this portable cooling device combines mobility with multidirectional air movement to secure comfort in various environments