Features: 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, forming 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. Specifications: Material: ABS Color: White,pink,green,black,red Size: 4*2.6*11.3cm Package include: 1pc( US plug or EU plug) Note: Please allow slight dimension difference due to different manual measurement. Please note that slight color difference should be acceptable due to the light and screen.