1,Breathe cleaner air: This personal air freshener will release more than 8 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 Lanyard,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,Easy to use: easy to operate, just press the simple operation to enjoy air. 4,Long-lasting: The portable air purifier has a USB charging port that can be for 15 minutes and can be used for about 15 hours to fresh air 5,No need to replace consumables, silent operation, suitable for scenes Product name: hanging neck air purifier Model: A80 Negative ion concentration: 8 million negative ions Battery capacity: 90mah Charging time: 15 minutes Use time: 15 hours Power mode: USB Using voltage: DC5V Power: 0.5W Current: 180mA Rated frequency: 50 (HZ) Control : button Noise: 30 (dB) Working principle: negative ion Suggested use area: 3-5 () Colour: random color (White, pink or Purple), don't accept the specified color Material:ABS Size:15 x 21 x 63mm Package Contents: 1 x purifier 1 x lanyard 1 x charging cable Only the above package content, other products are not included. Note: Light 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.