Aromatherapy, humidifier, and mist maker. Enjoy the benefits of aromatherapy all day long with this autonomous ultrasonic diffuser. Thanks to its built-in battery, Horizon Diffuser works cord free and can be easily taken from one room to another, creating a relaxing atmosphere at home. Enhance your space safely and naturally without compromising your aesthetics. Horizon diffuser, both sleek cylinder shape and large capacity translucent tank, providing a cool and calming stream of mist for up to 12 hours. Silent diffusion with ultrasonic technology. Coolmist safe for use. Capacity 34 fluid ounces. Automatic shut shut off when water tank is empty. Rechargeable battery via USB-C. Brand new , never removed Fromm original box.