For quiet environments such as libraries and meetings, this device helps maintain a comfortable temperature without noise, while also enhancing outdoor experiences during camping and festivals. Builtin rechargeable battery and ergonomic handle provide a comfortable grip and extended cordless use during commutes or outdoor activities. It combines strong airflow performance with silent operation to deliver effective temperature control without disturbing study or leisure activities. Designed for students, office workers, and travelers, it offers reliable relief from heat in classrooms, workspaces, or while exploring destinations. Use scenarios In libraries or meeting rooms: stay cool without disrupting concentration or conversations. Outdoor camping or festivals: enjoy comfortable airflow with quiet operation away from power sources. Commutes, travel, or dorm/workspace use: maintain cooling during active days or while navigating destinations.