This essential oil diffuser is made of plastic for lighter weight and easily moving. Featuring color changing system, it offers seven colors for choosing to match your mood. Perfect for eliminating smoking and pet odors, get great and peaceful sleep surrounded by the aromatic fragrance. Feature - Color: Yellow. - Material: Plastic. - Size: Approx. 16.7x16.7x12.9cm - Input: AC100-240V 50/60HZ - Output: DC 24V/0.65A - Coverage: 21-30 square meters - SPL: less than 36db - Water tank capacity: 350ml. - Timing: 60min/120min/180min/continuous - Spray Volume: 30-40 ml/h - Quiet ultrasonic operation won't disturb relaxtion. - Seven light colors available. Eco-friendly and energy-saving. - Relieves strain and eases stress, purify the air around, neutralize static, reduce infection of skin. - It will shut down automatically when water runs out or it is overturned, safe and reliable.