1. Negative ions effectively purify the air, remove PM2.5, dust, harmful substances, viruses, bacteria, etc.2. Especially suitable for children, the elderly, pregnant women and those who are allergic to pollen and odor3. Effectively control bacteria and other infections around people, stay away from respiratory diseases, etc.4. One charge can be used continuously for 31-62 hours5. Special protection for pregnant women and children who are susceptible to air infectionsPurify the surrounding environment anytime and anywhereOperating voltage: DC5VBattery capacity: 800mAhAnion concentration: 120 million(level-high)Working time: 31-62 hoursCharging method: TYPE-CProduct weight: 48gColour: BlackMaterial: ABSSize: 77 x 35 x 17mmPackage Contents:1 x purifier1 x usb line1 x lanyard1 x storage bag1 x English manualOnly the above package content, other products are not included.Note: Light shooting 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.