Smart HVAC wall-mounted aroma diffuser with 150ml capacity and app control for convenient scent management. Features ultrasonic technology for whisper-quiet operation at under 34dB, powered by DC5V with minimal energy consumption. Disperses essential oils efficiently at 0.6g per hour. Durable plastic construction available in white or black. Perfect for offices, bedrooms, and living spaces seeking automated fragrance distribution integrated with HVAC systems. Includes smart app connectivity for scheduling and intensity adjustments from anywhere.