USB ChargingCat Litter Freshener has a built-in high-capacity battery, which can work for more than a week when fully charged. If you clean the litter box every week, take it out and load it. When the red light is on, it should be charged. Multi-PurposesCat Litter Deodorizer is specially designed for various small spaces that often produce peculiar odors, such as household trash cans or for pets, cabinets, closets, shoe boxes, toilets and other animals. Choose our smart deodorants and place them in or near the scented area to create a fresh home for you or your pet. Smart DesignCat Litter Deodorizer is equipped with a High sensitive motion sensor, capable of detecting the movement of pets in a wide angle range. Turn on Do Not Disturb mode when pet goes to the toilet and turn on disinfection mode when pet leaves the bathroom for real-time monitoring. The operation is more efficient, with automatic disinfection every 20 minutes. Environmental DeodorizationCat Litter Deodorizer is equipped with a deodorizing generator, which converts the particular odor of the air in oxygen and water to achieve the deodorizing effect. All these reactions are environmentally friendly, do not produce harmful gases, and the overall deodorization rate can reach more than 90%. Safe and EffectiveCat Litter Deodorizer uses purely technology natural, does not use herbal flavors or deodorants to produce deodorizing effects, does not harm you or your pets, and provides safe and effective protection. Welcometomeet< /p>