Mini Portable Air Purifier Wearable Air Purifier Necklace USB Air Cleaner Negative Ion Generator Personal Air Freshener for Adult,Kids(Blue)

Specification: Power Supply£ºUSB Working principle£ºanions Applicable area£ºbelow 10m? Functions£ºair fresher Filter type£ºno Anion density£º6millions pcs/cm? Noise: below 25dB Input voltage: 5V Input power: 0.1W Size: 60x55x17mm/2.36x2.17x0.67inch Charging time:obout 1 hour Length of use:48 hours Power Supply:USB battery capacity:200MA Package including: 1x Air Purifier Necklace 1x Charging Cable 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