Remote Control --- The effective distance of the remote control is 3m, the remote control is powered by a 3V CR2025 button battery (battery is included). All these functions can be controlled by pressing the buttons on the humidifier oron the remote control. Capacity 400ml & BPA Free---Large capacity and more mist. Working time up to 10 hours. Refreshes and hydrates the air for rooms from 20 to 40 m. The diffuser does not contain BPA, it is safe for children and womenpregnant. Spray Conversion --- You can realize continuous and intermittent spraying, large mist and small mist switching. You can easily set the time (1H/3H/6H/ON) by the controller. Variable Color Light---You can auto-circulate these colors or choose any fixed color you like. You can also adjust the brightness of the light. Auto Power Off--- When the water runs out, the diffuser will turn off automatically. Color: Dark Wood constant humidity ensures that your skin does not dry out For aromatherapy: just add 3-5 drops of essential oil Quiet operation ensures a quiet environment Can be used as a light at night Very easy to clean and maintain No filter liquid required Specifications Material: ABS / PP Capacity: 400ml Adjustment area: 20 - 40 cm Ultrasonic frequency: 2.4MHz Remote control distance: 3m Adapter cable length: 1.5 m