... , patent itemCertificatesCCC,CE,GS,SA,UL,ROHS Electric Ultrasonic Wholesale Aromatherapy Diffuser Packing Details: Product Size375*160* ... per unitG.W.(kg)900g per unit20' FCL2520pcs40HQ5040pcs Electric Ultrasonic Wholesale Aromatherapy Diffuser Product Features:1. Patent Product ... Time controllable.3. Work quietly, no noises.4. Ultrasonic techlonogy, no heating,safe and high efficiency.5. Aromatherapy ...