Item Type: Aroma Diffuser Material: PP Battery (Excluded): 2xAA batteries Product Size: Approx. 11x10x5cm / 4.3x3.9x2.0in Applicable Solid Aroma Block Size: Approx. 7.5x5cm / 3.0x2.0in (excluded) Applicable Aromatherapy Types: Solid aroma, liquid aroma Noise: 1.Shipped without solid aromatherapy blocks, customers need to prepare their own;2. Liquid aromatherapy oil packs are shipped without, need to be prepared by customers; 1Powerful Odor Elimination: The aromatherapy diffuser has a powerful odor elimination function, which can naturally disperse, long lasting fragrance, keeping the air fresh and fragrant. The built in fan can help the scent to fully cover and quickly spread to all corners of the space. 2Paste Installation: The aroma diffuser adopts paste installation, no need to plug in electricity, a paste is used, more convenient. This design makes the aromatherapy fan with a wider range of uses, can be placed in different locations, such as countertops, walls and so on. 3Uniform Diffusion: The aromatherapy diffuser can diffuse the fragrance evenly in a range of 630m, ensuring that the fragrance can fully cover the entire space. 4Installation: The aromatherapy diffuser is designed for table or wall mounting. Wall mounted installation without drilling holes, more convenient, no need to worry about damage to the wall, providing more options. 5Operating Voltage And Running Time: The working cycle of the aromatherapy fan is 15 minutes and the running time is 10 seconds. The minimum battery operating voltage is 2.2 volts and there is a low voltage alert flashing red light.