14H COOLING: The USB fan built-in 4800mah battery can be used continuously for 14 hours. No need to worry about the heat even if you camp out all night4-LEVELS OF WIND: In addition to the general low, medium, and high winds. this desk fan adds natural wind. Rhythmically changing the wind can better bring you to sleepPOWER BANK FUNCTION: The stable power supply chip can provide continuous and stable power for mobile phones, earphones, etc.STRONG WIND: this table fan built-in 12-core Motor, Provide strong wind power. Bring a hint of refreshing air to the hot summer. Whether its the office, home, camping, or picnic, its a good cool helperQUIETSTABLE: Using stable enhancement fan blades. The sound produced is as loud as a rainy day. Does not affect sleep, reading, work, etc.INDOOR-OUTDOOR FAN: This portable personal can be adjusted at 180 degrees and can be used on any countertop. At the same time, the tail can be hung on hooks, Carabiners, and tents. Portable, suitable for most environments