USB Mini Portable Air Purifier Necklace Color:White Just press the button for

Just press the button for two seconds to enjoy the fresh air

charging 1h

4 GHz Wi-Fi currently

Have licensable own brand

Volume control: yes

USB Mini Portable Air Purifier Necklace Color:White Just press the button forCharacteristics: 1. Advanced pulse technology is used to release a large amount of oxygen anion. Latest double carbon brush negative ion generator design uses over 6 million negative ions to effectively remove harmful substances such as floating dust, smoke, formaldehyde and PM2. 5 from the air . 2. release a large amount of oxygen anion, kill harmful bacteria, mold and viruses, break down smoke, odors and formaldehyde, benzene and other harmful gases