Product Description: Material: aviation aluminium + Product size: 34*43.6*63.2mm Battery capacity: 250mah Charging interface: TYPE-C Power consumption: 2 W Charging time: 2.5H Battery Capacity: 250mAh Charging Input: 5V-0.5A Usage time: 3-20 days (depends on the actual usage frequency) Operating temperature: 0-50 degrees Auto sleep: 5 minutes Package Includes: 1 * Aromatherapy Diffuser 1 * Charging cable 1 * Instruction manual QUALITY MATERIALS: The Intelligent car Aroma is made of materials with a appearance. Perfectly integrated with the car interior, the lasts long and brings a pleasant driving mood. Intelligent purification: Smart Car Freshener uses -atomization technology to quickly capture and decompose various odors to ensure fresh in the car.     Intelligent operation: automatic start and stop function, Smart Car Freshener intelligently adjusts the duration according to the conditions in the car. Three free adjustment modes are provided. Multifunctional design: The exquisite appearance is not suitable for car interiors, but also adds to the beauty of the interior space. Smart Car Freshener has a wide range of applications, including bathrooms, bedrooms, pet rooms, etc. Quiet: Completely quiet without any annoying noise. You can use it for a long time without worrying about charging, perfect for long car trips and outdoor activities.