Creative Design: This cola cup humidifier features a unique and stylish design that resembles a real cola cup, with a wireless flame effect that creates a warm and cozy atmosphere. USB Rechargeable: The humidifier is powered by a built-in rechargeable battery that can be charged via USB, making it convenient and eco-friendly. Car Air Humidifier: The humidifier is designed to fit most car cup holders and can be used as a car air humidifier, helping to improve the air quality and reduce dryness during long drives. Portable and Silent: The humidifier is compact and lightweight, making it easy to carry and store. It's also silent and won't disturb your work, sleep, or relaxation. Easy to Use: Simply fill the cup with water, connect it to the USB port, and press the button to turn on the humidifier. The LED light will change color to indicate the status. Weight: 123g Color: white, red, orange Material: ABS+electronic components Quantity: 1pc Coke Cup Humidifier Style: USB plug-in version Water tank capacity: 400ml Battery capacity: 1200mAh Product Operating Instructions: Spray Function: USB type: connect to the power supply, add water and wait for the absorbent cotton core inside the product to fully absorb water, flip the cover to turn on the light and spray, and turn off the device when the cover is closed.