Product information: Power supply: USB Specifications: 17*6*22cm Product features: three-speed wind adjustment for hanging neck, with bluetooth audio Noise: above 70db Applicable area: neck area Air supply method: no page turning and no shaking Wind speed gear: 3 gears Operation mode: mechanical Color: blue hanging neck bluetooth audio fan, pink hanging neck bluetooth audio fan, white hanging neck bluetooth audio fan Built-in battery capacity: 1200mAh-2000mAh Product size::17*6*22CM
