Easy to Use and Compact: Easy to use, car cup design fits most vehicle cup holders perfectly, portable size, can be used anywhere and anytime (the package only includes USB cable, adapter not included). Note: Not Wireless Sufficient Capacity: The car diffuser has large capacity as 100ml container with 2 spray modes: 4h continuous misting with 7 changing colorful LED lights; 6-8 hour intermittent misting with 7 color changing LED lights; or use it as a night light (keep pressing the button within 2 seconds to open the colorful night light) Completely silent and BPA free: completely silent without producing annoying noises, it automatically switches off during watering, to ensure safety and longer life Brings moisture and nature to your car: ultrasonic technology works effectively to give an ultra-fine and smooth even mist , it's the easiest way to keep your car cool, humid and odor free. Ideal gift: perfect mini USB humidifier, portable for any small area, eg car , office, bedroom, etc. Perfect high tech gift idea that will love it.