Product sellpoints: The capacity of the machine is 150ml, and the noise is less than 38dba. The operation mode of the button can be placed flat or hung . Coverage: 300m USB power connector, Tilted mist outlet, Trapezoidal anti- base, 1xD battery runs , .Three battery port design A varietyof power supply . Quality construction: With a durable construction, our diffuser is made to last. it can be used for a long time and is easy to clean. Easy to use: Simply insert the diffuser into the room, and then place it on the table or any other flat surface. 1xD battery or usb plug-in ways to use Built-in 150ml capacity Double trapezoidal base design reinforced non-, comfortable experience. Concentrated mist with a wide distribution area and longer lasting fragrance. Suitable for use in a of scenarios size: 14.4 x 6.9 x 18.2cm Material: PP colour: black Package Contents: 1 x main body 1 x spare atomizer core 4 x nails Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.