Description: 【Multifunctional Design】: This Aroma machine features a combination of 4 types of sound and speaker, colorful simulated flame, and essential oil aroma. It's great for creating a relaxing atmosphere in your bedroom or any room in your home 【Long Working Time】: The essential oil diffuser provides approximately 4.5h of misting time and up to 18h for the sound and Bt speaker function 【Secure Features】: With a water tank capacity of 120ml, this Scented Air machine has an automatic shut off feature when the water level is low, ensuring secure and energy efficiency 【Convenient to Use】: Using essential oils, fragrance instantly fills your home. Portable essential oil diffuser, small 11.4cmx11.2cmx12.1cm, space saving in your room 【Keeping Refresh Your Space】: Aroma Humidifier makes it for business accommodations, home, yoga, spa, camping, and traveling, your bedrooms, bathrooms, office room, or some commercial space Specification: Material: ABS Battery: 4000mah Size Chart: (L*W*H)11.4cmx11.2cmx12.1cm/4.49inchx4.41inchx4.76inch Package Includes: 1 Essential Oil Diffuser (Not Include Essential Oil) 1 Charging Cable 1 Manual Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.