Ultra Silent Travel Fan - 4000mAh Ultra Thin USB

【Compact with Big Function】 Equipped with USB Fan + Battery Fan + Emergency Charging Function, Otlonpe F16 Small Desktop Fan is an essential fan for daily carry, cooling you down on hot days with versatile functions meeting your various needs. [ 7.5 – 23 Hours Cooling Time ] Battery mode or USB mode has a long cooling time of up to 23 hours after one full charge without stopping working. 4000mAh Battery Fan Lets You Enjoy It While Traveling, Sleeping, Working, and Other Indoor or Outdoor Activities [4 Adjustable Fan Speeds] Experience excellent cooling and comfort with our rechargeable fan's portable 4-speed settings. From gentle breezes to powerful gusts, each airflow is carefully designed to meet your needs. Especially the 4th-speed variable frequency wind energy provides the closest natural wind [Ultra-quiet Portable Fan] Size: 6.6x5.6x 1.5inch inches, Weight: 9.3 ounces, Foldable Fan Stand, making our small fan more portable. In addition, the silent desk fan operates at less than 35 decibels, not interfering with work, study, sleep, or meetings [Easy to Clean, Emergency Charging] Have you ever experienced inconvenience with desktop fans that are hard to clean or low battery on your phone during important moments?If that's the case, then our private fans are a better choice. Equipped with a detachable fan frame and emergency charging design, bringing you more convenience