Copenhagen Atomiser Aroma Diffusers are timeless and elegant, they provide a flameless and smoke-free way to fragrance your room or office. Just add some water and a favourite essential or fragrance oil for an instant aroma experience. – Tank Capacity 120ml- LED light – 4 colours- Powered bu USB ( length of the cord 100cm) – Auto power off when water runs out- timer 1-3-6 hoursHeight 15cm, Diameter: 10.5cm, Weight 0.400 Comes with the user manual