Features: 1Salt stone is a kind of mineral whose main function can release negative ions, prevent radiation, prevent moisture, improve sleep, refresh the brain, prevent asthma, increase immunity, and natural beauty. 2Quiet operation, no interruption to work, bass operation, built?in 1200 mAh rechargeable battery, long battery life, easy to use in wireless state. 3The translucent structure generates a spectrum, which can purify the air, relieve stress, regulate emotions and reduce electromagnetic radiation. 42 level spray adjustment, click the button to turn on the continuous spray mode, click the button again to turn on the intermittent spray mode, and the third time to turn off the spray mode. 5The large capacity water tank is continuously replenished with 400mL water storage capacity, which can meet the humidification needs of one day, without frequent water addition, and keep moisturizing. Item Type: Salt Mine Humidifier Material: ABS Size: Approx. 16.4 x 8 x 8cm/6.5 x 3.1 x 3.1in Gross Weight: Approx. 421g/14.9oz Voltage: 5V Current: 1A Power: 2W Battery: 18650 Polymer Lithium Battery 1200mAh (Included) Use Time: Continuous Spraying 6h, Intermittent Spraying 12h Charging Time: About 2.5 Hours Water Tank Capacity: 400ml Spray Volume: About 45ml/hour Package Included: 1 x Humidifier 1 Package x Salt Mine 1 x Manual 2 x Humidifying Stick 1 x Humidifying Stick Tube 1 x USB Power Cord