Description: Ceramic PTC heating plate, good thermal conductivity, fast drying air and remove moisture. ABS material, stable base, many of holes for improving moisture absorbing. Simple structure and rounded design, a beautiful art on your home. Visible drying condition, orange particle - normal use, and green particle - heating & drying. Perfect for multiple house area, such as wardrobe, cabinet, bookshelf, etc. Specification: Product: Electric Air Dehumidifier Color: White Battery Type: USB Charging Voltage: DC 5V Material: ABS Size: Approx. 168X60X30mm/6.6x2.4x1.2in Size Chart: Precautions 1. This product does not need to be plugged in during use, and it must not be in direct contact with water. 2. When this product is drying, the wet and dry mode visual window displays in orange. It is in working mode at this time and only needs to be placed where dehumidification is required. 3. When the product is full of water, the wet and dry visual window will be displayed in red. At this time, the product needs to be plugged in for about 1-3 hours, and the moisture absorbed by the silicone will be removed by heating until the visual window returns to blue. displayed and can be used again. 4. When using it for the first time, check the color of the hygroscopic particles on the viewing window first. If it is red, please plug it in and heat and dry it to restores it to blue. If it is blue, you can use it directly. 5. The moisture absorption speed and duration of this product will vary due to changes in the environment, humidity and weather. At the same time, the discoloration speed of the moisture absorbing particles in the viewing window will also change accordingly. Package Includes:(4 Pack) 1x Air Dehumidifier 1x USB Cable