This essential oil diffuser has 2 colors for the flaming effect, blue and red.  Also, it has 3 timing interval for you to choose to meet what you need and it will automatically power off when it's running out of water.

Function: Aromatherapy

Features 1: Armoa diffuser
Features 2: Humidifier
Features 3: Night Light

SPECIFICATIONS
Working Current: Less than 900mA
Water-shortage Power-off Protection: Yes
Water Tank Capacity: 250ml
Voltage (V): 5V
Use: Household
Type: Ultrasonic Humidifier
Timing Function: Yes
Shape: Commercial Square
Shape: Flame
Rated Input: DC5.0V/2A
Product Size: 170*80*108mm
Power Type: USB
Power (W): 4.5W
Operation Method: TWIST
Noise: <36db
Installation: USB
Humidity Control: Touch-tone
Humidifying Capacity: 200ml/h
Humidification Method: Mist Discharge