FAST CHARGING & LONG-LASTING 3000mAh BATTERY: This essential oil smart car diffuser fully charges in about 3.5 hours via USB-C. Enjoy up to 3-4 hours in continuous mist mode or 8-12 hours in intermittent mode. In intelligent car mode, it can last from 16 hours to 21 days, depending on driving frequency and mist cycles, for worry-free daily use. ULTRA-QUIET 28dB OPERATION & SMART MEMORY FUNCTION: Designed for peaceful aromatherapy, this cool mist aromatherapy air freshener diffuser operates at only 28dB. The built-in smart memory automatically recalls your last-used mist and light settings at startup, so you can enjoy your preferred ambiance instantly. INNOVATIVE CAR AUTO MODE & WATERLESS SAFETY PROTECTION: In car mode, this rechargeable diffuser stops misting about 5 minutes after the engine is turned off and resumes automatically when you driving again. It is equipped with intelligent waterless shut-off protection, which turns the device off when the water level is low. 10 DYNAMIC LIGHT MODES & EASY TOUCH CONTROL: Customize your environment with 10 vivid light effects, including 7 solid colors, RGB color cycling, soft gradients, and color rotation. Simple button controls make switching modes intuitive. TRUE PORTABILITY, USB-C CHARGING & COMPLETE PACKAGE: The cordless design and 3000mAh rechargeable battery let you place this aroma diffuser anywhere-car cup holder, bedroom, office desk, or hotel room-without needing an outlet. Color: Black Material: plastic Package Contents: 1*aromatherapy machine 1*charging 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.