Features: Easy to insert into car cigarette lighter No chemicals or reagents are used. Silent design, no motor is used. Plug it into the cigarette lighter. It starts working automatically after booting. Inhibits bacterial growth Removes odors in the car Applies to all cigarette lighter standard lights Blue LED lights p> Color: Black Dimensions: 8.5 x 2 x 2 cm Input: + 12v Notes : Do not disassemble the product, the internal high-voltage circuit, do not plug or unplug the product. Do not put small pieces of metal in it to avoid malfunction. Unplug the power supply when not in use, the battery voltage is too high to avoid damage to the machine. Do not use acidic or alkaline cleaners for cosmetic cleaning. After the power is cut off, open the doors and windows to stop using, thus prolonging the service life. When getting out of the vehicle, unplug the cigarette lighter from the outlet. Package includes: 1x Auto Oxygen Bar Cart (retail packaging not included)