1.All round: more than 5 million negative ions are released around, which is more scientific and more average in distribution. Negative ions are distributed along the wall, compatible withming a full surrounded negative ion surround.2.Power saving: smart a chip power saving scheme, durable.3.More reasonable space purification mode: 40 seconds a light breath, more scientific increase and decrease in the amount of release.4.Easy to use: one button switch, eliminating the cumbersome dialing and inserting. Plug and play, ease of mind. It is exquisite and small, and does not block other rows.5.Widely applicable: it can be used in bedroom, living room, kitchen, toilet, study room, office, etc.Plug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the United States, the Philippines,Taiwan and so on.Power supply: ACControl method: push-buttonApplication area: 41 (inclusive)-60 (inclusive)size:11.3 x 4cmMaterial:ABScolour:redPackage Contents:3 x Anion air purifierOnly 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.