Smart Car Air Freshener, Car Air Diffuser & Air Freshener Three-Tone Smart Car Air Freshener--Car Diffuser Humidifier Aromatherapy.An intelligent car air freshener with three adjustable modes: smart startup, automatic shutdown, and intelligent scent adjustment. It detects the air conditioning condition inside the car and matches the ambient light to automatically adjust the duration of the fragrance. It offers three modes that can be freely adjusted. para Carro Inteligente Intelligent Car Aroma Colour:Black Material:Plastic Package Contents: 1x Car air diffuser kit 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.