5-Inch USB Fan Mini Silent Desktop Small Electric Fan

Power mode: USBNoise: below 36dBRated voltage: 5VRated power: 2.5WApplicable area: 1 square meterAir supply mode: no turning page and no shaking headWind speed gear: first gearOperation mode: Piano buttonCharging supported: not supportedShake head way: shake head up and downFall and stop: no supportPage fan: YesGross weight: 257gPackage volume: 16.5 * 1315Blade diameter: 5 inchesBuilt in battery or not: NoneBuilt in battery capacity: NoneSpeed control gear: first gear