1. Breathe cleaner air: This personal air freshener will release more than 20 million negative ions, pushing pollutants away from your personal space, eliminating most smoke, cooking odors, and even PM2.5 air pollutants, thereby improving mood and Sleep.2. Take it with you: Because this mini air purifier comes with a necklace,it can be worn around the neck. During the journey, in public places or other places with poor air quality, wearing this kind of clothing can create a fresh air area.3. Long-lasting: The portable air purifier has a USB charging port that can be charged for 1 hour and can be used for about 48 hours to ensure fresh air4. Easy to use: easy to operate, just press the simple operation to enjoy the fresh air.5. No need to replace consumables, silent operation, suitable for various scenesProduct name: hanging neck air purifierInput voltage: DC 5VOutput power: less than or equal to 1WRated frequency: 50 (HZ)Control method: buttonBattery capacity: 300MAHFunction: 1. Negative ions can effectively purify the air and remove PM.5, dust, harmful substances, bacteria, etc. 2. The best air protection umbrella for children. 3. Double negative ion emission carbon fiber head, double the air purification. 4. Put yourself in the oxygen bar and quickly purify.Use environment: home, outdoorcolour: pinkMaterial: ABSSize: 6x5.5x1.6cmPackage Contents:1 x air purifier1 x necklace1 x charging cableOnly the above package content, other products are not included.Note: Light shooting 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.