This kind of practical and attractive aroma diffuser offers you leisure t-ime. Just settle down and enjoy. Big capacity water jar design with built-in 4000mAh high capacity rechargeable cell (Optional) make it endurable. What are you waiting for? Just come and buy. Features: Low noise, keep quiet, provides you a better sleep environment. Double spray nozzle for covering large area and each spray nozzle can be controlled independently. Comes with high clear LED cell volume display makes you can know its working status. 3 Levels adjustable spray mode(single spray mode/ dual spray mode/ intermittent double spray mode) meets your diverse needs. 500 ML big c-apacity water t-ank, no need to add water frequently and built-in 4000mAh rechargeable cell (Optional) for long-lasting. USB c-harging port design with convenient Type C chargeing port, it can be p-owered by p-ower bank, laptop, p-ower adapter etc. Safe to operate with its auto shut down function, mini size and light weight, perfect