JisuLife Handy Fan 9 S [Ultra-compact / 22-hour battery life / 5-speed airflow a
Ultra-compact yet powerful airflow: A uniquely developed 3-phase brushless motor and diagonal flow blades create a strong, spreading airflow despite its ultra-compact size. Up to 22 hours of long battery life: The motor and drive program are individually tuned to match the air resistance of each fan blade, minimizing unnecessary heat generation and energy loss, and maximizing battery efficiency.