InfoThink Portable Net Series - Portable Necklace Negative Ion Air Purifier - Graphite Blue

**(Give two stainless steel box necklaces to enhance the negative ion efficiency) Please let the necklace touch the human body to make the best effect.** https://live.staticflickr.com/65535/48118712146_95748e00df_b.jpg InfoThink Portable Net Series - Portable Necklace Negative Ion Air Purifier - Graphite Blue Negative ion eruption number of human environment test: https://www.youtube.com/watch?v=0EHAsQxSY5c https://live.staticflickr.com/65535/48118712091_8238dc5d52_b.jpg Alleviate allergies, remove air pollution sources, refuse to smoke second-hand smoke!!! For the health of our family, we did an experiment to make your eyes see: https://www.youtube.com/watch?v=CBjEVG4_5Ds&feature=youtu.be feature of product 1. Ultimate Lightweight Necklace with Wearable Design 2. Made of stainless steel fashion necklace, high negative ion production efficiency 3. Ultra-lightweight body, wearing no burden 4. The hay fever, allergies, commuting and other groups are applicable indoors and outdoors. 5. USB rechargeable design 6. Outdoor (high negative ion number) / indoor (power saving) two modes 7. Over 20 million negative ions per second 8. Effectively remove more than 99.9% of particles above PM0.1 (including PM2.5) 9. Near zero odor generation rate (<0.001ppm) 10. Can be used continuously for 30 hours 11. Silent silence, no consumables, no electromagnetic waves 12. Passed SGS, BSMI, UN38.3, MSDS certification 13. Taiwan Design and Manufacture https://live.staticflickr.com/65535/48118743303_9e0e83cea5_b.jpg https://live.staticflickr.com/65535/48118801742_8d1e515c2f_b.jpg https://live.staticflickr.com/65535/48118801807_70785ae19f_b.jpg https://live.staticflickr.com/65535/48118712056_555a3308ca_b.jpg How to use: 1. Charge the battery before using it for the first time. 2. Power on - long press the power button for 2 seconds, the LED is green and bright (outdoor mode); indoor mode - press the power button again, the LED is blue and bright. 3. Shutdown - Press and hold the power button for 2 seconds. 4. When the battery is less than 25%, the LED will flash red, please charge it. If it is still not charging, it will turn red until it goes out. 5. The red light goes out when charging is complete. Precautions: 1. Please avoid foreign matter blocking or falling into the negative ion air outlet. 2. Do not place this product in extreme conditions such as humidity, high temperature, etc., and keep away from fire. 3. Do not strike this product or hit it or drop it to avoid damage to the product. 4. Under normal use of this product, the function is guaranteed for one year. Product specifications: 1. Material: PC, 316 stainless steel 2. Size: 69 x 25 x 18 mm 3. Weight: 23g 4. Power: built-in lithium battery 5. Charging time: about one hour 6. Use time: up to 30 hours (indoor mode) 7. Operation mode: outdoor mode (continuous generation), indoor mode (intermittent generation) 8. Origin: Taiwan product content: 1. InfoThink portable necklace negative ion air purifier x1 2. Micro USB charging cable x1 3. Stainless steel necklace x2 4. Instruction manual x1