Atomiser - Bluetooth Speaker uses Ultrasonic waves to instantly vaporize water and essential oil in the tank, to produce a cool, dry fragrant mist.- Tank Capacity 300ml- LED light - 7pcs- Powered bu USB ( length of the cord 100cm)- Auto power off when water runs out- timer 2,4,8,16hHeight: 15cm, Diameter 15.5cm, Weight 350g