Hands-Free Portable Smart Cooling Neckband Fan Rechargeable USB White

Description:20 million negative ions: Release 20 million negative ions, practical to purify the surrounding air in daily life. Protect you from fine dust, smoke and odor in daily life.The generator can absorb effectively, eliminate smoke and purify the surrounding air in daily life. Eliminates most pollen, odors and air pollutants, creat a fresher personal space for you.USB charging, up to 15-20 hours of working time after fully charged, long life, zero , no radiation.Portable Hanging neck design, wear it around your neck and have a sphere of breathable clean you go.Suitable for home, bedroom, living room, kitchen, car, office or public transportation, , bus and tourist attractions.Specification:Size:Approx.16.5x13x3.8cm/6.5x5.1x1.5inchPower: USB chargingVoltage: DC3.7-5V/1.5AInput:15-20mAhPower: Less than 1WSilent decibel: 20dbCharging Time: 30minWorking time: about 15-20 hoursBattery Model: 380mAhPackage Includes:1 Piece Air Purifier1 Piece USB Cable
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