advanced semiconductor cooling technology with 100 adjustable speed, flowing from gentle blower to gusts for outdoor comfort Features LED digital display showing real time battery / gear and channel that efficiently convert warm air into chill flowing through thermal exchange component Perfect for work, or household chores where back mounted flowing circulates cooling across the waist area, maintaining comfort in high temperatures Engineered with noise reduced motors and a secure waist clip design, this portable cooling fan withstanding with ABS housing and splash resistance Ideal for outdoor workers, fitness enthusiasts, and commuters needing cooling during hiking, cycling, or exploration without bulkiness