Bán Vòng Cổ Lọc Không Khí Ion Âm Mini Sạc Usb Khử Mùi Cho Người Lớn Và Trẻ Em giá tốt nhất

product description: feature: 1. Double negative ion emitters, double the effect, effectively purify the air, remove PM2.5, second-hand smoke, dust, harmful substances, viruses, bacteria, etc.; 2. Especially suitable for children, the elderly, pregnant women and those who are allergic to pollen and odor; 3. Effectively control bacteria and other infections around people, stay away from respiratory diseases, etc.; 4. One charge can be continuous for more than 20 hours; 5. Special protection for pregnant women and children who are susceptible to air infections; 6. Purify the surrounding environment anytime, anywhere 7. Equipped with conductive carbon fiber lanyard, safer product description: 100% brand new Battery capacity: 300mAh, charging time: 50 minutes, working time: 24 hours Product size: 65*47*22MM Packing size: 85*85*45MM Anion concentration: 8 million PCS /m³ Purification range: about 1m³ Battery capacity: polymer lithium battery 300mAh Battery life: more than 20 hours Battery life: more than 5000 times of charging and discharging Battery voltage: 3.7V Product net weight: 30g, with packaging weight: 99g Accessories: lanyard, USB charging cable, Chinese and English manual notes: 1. Due to manual measurement, please allow an error of 1-3 mm. Before ordering, please make sure that this is not a problem for you. 2. Due to the differences between different monitors, the picture may not reflect the actual color of the item. Before ordering, please make sure that this is not a problem for you. Thank you!