2Pcs Air Purifier Mini Portable 16000W Negative Ion Two-Speed Adjustable 500MAH Hanging Neck Purifie

Name: PurifierOperating voltage: DC 5V, current less than 50mABattery capacity: 500mahCharging : TYPE-C chargingBattery life: 20 hours at high concentration, 40 hours at low concentration, charging time: 2 hoursFunction: negative ionWorking principle: negative ionNoise: 35 (dB)Air volume of air purifier: 50 meters\/hourPower supply mode: USBRated frequency: 100 (HZ)Use environment: carControl : push-buttonColor:WhiteMaterial:ABSSize:73 x 36 x 19mmPackage Contents:2 x air purifier2 x charging cable2 x lanyardOnly the above package content, other products are not included.Note: Light 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.