- Ultra Quiet Personal Fan - advanced noise-reduction technology keeps noise under 35 dB for whisper-quiet operation. Carefully engineered airflow minimizes discomfort or headaches during prolonged use, providing gentle relief whether you are napping, fixing makeup, or working. - Super Powerful Cool Fan - driven by a high-performance motor paired with an AI chip. Speed up to 116000/min, airflow up by 1200/min, and wind power up by 300%. Four-blade circulating air ducts cool quickly, with a 105° adjustable angle to suit your seating or lying position. - Suitable for All Occasions - no-hole wall hanging design enables flexible placement in the bedroom, kitchen, office, or camper. True DC technology supports efficient air movement to revitalize any space and create a comfortable indoor airscape. - Cooling in 3 Seconds - new generation cooling wind cools in about 3 seconds at 16°, delivering instant refresh. Built-in 4000 mAh battery with charging time around 3.5 hours supports 3–10 hours of continuous operation, and wireless use is possible when AC power is unavailable.