Personal Wearable Air Purifier Necklace Mini USB Portable Air Freshener Ionizer Negative Ion Generat

This air fresher creats up to 5,000,000pcs \/ cm negative lonsHelps to eliminate PM2.5 air pollutants, smoke, odors, dust,etc.Silent operation and easy to useNo extra filter neededIf you want to have a better immune system in the flu season, stop allergies from bothering you, boost your metabolism, this portable device is a reasonable option.Product Specification:Working voltage: DC5VPower: Less than 0.5wCharging time: 1 hoursWorking time: 10 hourssize:79.5x50.5x21.2mmMaterial:ABScolour:BlackPackage Contents:1 * purifier1 * usb cable1 * lanyard1 * Car clip holder1 * English manualOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.