COLD ATOMIZATION TECHNOLOGY: Using an atomization pump to send oil through a thin tube and release a dry mist of -particles into the air - the healthiest and most efficient diffusion to maximize the advantages of drop of oil. WATERLESS & HEAT FREE: Providing pure oil aromatherapy. Fine mist, 30 minutes can keep fragrant for hours. CONVENIENT TO MOVE AND CARRY: Built-in powerful rechargeable battery permits up to 71 hours of continuous use. Configuring USB port, can be from any USB port or wall outlet. Make your aromatherapy more convenient. MODERN: The design blends perfectly with any decor, e.g. bedroom, kitchen, bathroom, office, car, etc. You can use this portable diffuser in your spa, yoga, meditation, relaxation, and mood enhancing routines. Adopting air pumping technology, preserving the properties of oils. Colour: Black : ABS Add oils directly, diffusion without heating and water. Built-in 2500 mAh lithium- battery, portable for many occasions and spaces. Package Contents: 1 x diffuser 1 x usb cable 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.