AirTamer A310 Rechargeable Personal Air Purifier Review Air Purifier Space Air Fo: Personal Wearable Necklace Air AeroNecklace Wearable: High Efficiency Personal Purifier High Efficiency Dual Flow Reverse Osmosis Water Purifier Kitchen Tap Examples Of Wearable Medical Devices at Jasmine Disher blog. Overview: 1. The pulse tip technology is used to release a large amount of oxygen anion. The latest double carbon brush double negative ion generator design uses over 6 million negative ions to effectively remove harmful substances such as floating dust, smoke, formaldehyde and PM2. 5 in the air. 2. Release a large amount of oxygen anion, kill harmful bacteria, mold and virus, decompose smoke, odor and formaldehyde, benzene and other harmful gases released by car parts (such as sheet, leather). 3. Negative ions promote metabolism, activate cells, refresh and relieve motion sickness. 4. Mini,portable necklace design, stylish and convenient to carry. 5. Easy to operate, one button for on off. Just press the button for two seconds to enjoy the fresh air. Notice: Actual color may be slightly different from the image due to different monitor and light effect Please allow 1 3cm deviation due to manual measurement Specifications: Input voltage: 5V Input power: 0. 1W Size: 60x55x17mm Charging time: obout 1 hour Length of use: 20~24 hours Power Supply: USB battery capacity: 200MA Package including: 1x Air Purifier Necklace 1x Charging Cable Instructions: 1. Press and hold the power button for 2 seconds, the power indicator lights blue, and the product enters the working state. 2. Press and hold the power button again for 2 seconds, the power indicator goes out, and the product enters the shutdown state. 3. The power supply flashes red when charging the product. When the product is fully charged after 1 2 hours, the power indicator light is always red. Package Content: 1 x Necklace??