Specifications: Model DB20 Size W112*D71*H182 (mm) Capacity 100ml N.W 509g Coverage 100m3 Voltage DC5V Power 2.5W Noise <57dba Package Size W200*D155*H95 (mm) Introduction DB20 Aroma Diffusion System adopts cold air atomization principle, which is combined high-tech quality. Applicability: Elegant appearance, easy to install, stable performance. Intelligence: Adopting microcomputer system to control the working time and aroma concentration based on your setting. Reliability: Leading proprietary technology, the patented technology of micron atomization makes the aroma to spread quickly in the interior space, more fresh and lasting.