1. Breathe cleaner air: This personal air freshener will release more than 20 million negative ions, remove pollutants from your personal space, eliminate most of the 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 Lanyard and clip, it can be worn around the neck and on the collar. During the journey, in public places or other places with poor air quality, wearing this kind of clothing can create a air area.3. Long-lasting: The portable air purifier has a USB charging port that can be for 2 hour and can be used for about 24 hours to air4. Silent operation, No need to replace consumables, suitable for scenarios, purifying the surrounding environment anytime, anywhere5. Easy to use: easy to operate, just press the simple operation to enjoy the air.Product name: portable hanging neck air purifierModel: K7Rated voltage: DC5V/1.0APower: less than 1WCurrent: less than 50MACharging : type-cBattery capacity: 300mAhApplication area: less than 10Control : buttonApplicable people: especially suitable for children, the elderly, pregnant women and those who are allergic to pollen and peculiar smellcolour: greenMaterial: ABSSize: 80x23x35mmPackage Contents:1 x Air purifier1 x lanyard1 x charging cableOnly 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.