[Car Defroster]: Makes air molecules move violently and generates a large amount of energy, thereby achieving the remarkable phenomenon of no ice inside and outside the car. [Material Safety]: Energy substances come from nature. Whether it is a study, living room or bathroom, it can freshen the air simply and quickly without any adverse effects on the human body. [Same frequency vibration]: Microwaves with a frequency similar to the vibration and rotation frequency of water molecules affect the physical properties of water molecules, causing them to actively vibrate even at freezing point. [Perfect Match]: The portable essential oil diffuser not only adds a stylish touch to the car interior, but also matches perfectly with various car models. [Practical Gift]: Car diffuser for essential oils in car home office and bedroom, give it to your friends or family, they definitely appreciate you. Colour:As Shown Material:Plastic Size:8.4x3.2cm Package Contents: 4 * Car Defroster Only the above package content, other products are not included. Note: Light reflection 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.