【Shipping Method】 We will ship within 1-2 days, basically the day after your purchase. We will ship via the post office. The shipping method may vary depending on the product, but we mainly use regular mail (regular mail does not have a tracking number). ●Product Description● 【99.9% Effective Sterilization】 Utilizing UV-C bands of ultraviolet A/B/C, it destroys the molecular structure of DNA (deoxyribonucleic acid) and RNA (nucleic acid) in the cells of microorganisms, leading to the death of growing cells and/or the death of regenerative cells, resulting in a sterilization and disinfection effect. The UVC wavelength of this product is 253.7 nm, which is the most effective sterilization wavelength value. Operation is very easy and convenient. In addition to disinfecting masks, you can also disinfect smartphones, toothbrushes, glasses, earphones, cosmetic equipment, necklaces, watches, keys, bills, etc. 【Aroma Function】 By dropping a few drops of essence into the aroma hole before disinfection, you can enjoy the scent at the same time as disinfection. Notes on using essence: You can create your desired fragrance in the space by directly dropping a few drops of your favorite essence. 【Voice - Progress Display Function】 There are voice notifications at the start and end of disinfection. There are also progress lamps at 25%-50%-75%-10%. It is easy to understand the progress of disinfection. 【Rapid Disinfection, Safe Use】 Disinfection is completed quickly in 5 minutes. The ultraviolet lamp automatically turns off before and after the product is disinfected. To ensure the quality of disinfection, do not open the box. Y136