Bluetooth APP Control Aroma Diffuser: This aroma diffuser is controlled by APP through Bluetooth connection. Intelligent timing function, easy to operate. Two-fluid Conversion Atomization Advanced Technology: Essential oil is atomized into finer and lighter particle diffusion. Diffuse fragrance longer. Roomy Working Range: The diffusion doesn't utilize heat, which allows this essential oil diffuser to maintain essential oil integrity and holistic properties well. It is designed for large area scent . Easy to Installation and Simple Operation: Wall Mounted and Tabletop 2 in 1 designed. There is simple setting for work period, work and interval spray for customized needs. Super Quiet Operation: The large room diffuser produces less than 35 dB of noise. Specification: Material:Plastic Size: approx. 165x60x145mm/6.5x2.36x5.71inch Capacity: 150ml Power Supply: 2x D battery or USB 5V Power: 2W Package Includes: 1 Piece Essential Oil Diffuser 1 Piece USB Cable 1 Pack of Install Fittings 1 Piece English Manual Note: Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement.