Usb low voltage ultrasonic humidifier essential oil wholesaler aroma diffuser white 1. Can be used as aroma diffuser and humidifier 2. Mini-type can be for travelling use 3. Can be used in car or at home 4. Can be used with computer by usb line 5. Arm with 7 colors led lights, like a rainbow 6. Auto-off when waterless 7. Color: white or black(bottom) Packaging details: Packaging details: Inner packing of new products 2017 usb car air freshner aroma diffuser for wholesales: 18*12.5*22cm G.W.: 0.65kg Carton (27pcs): 38.5*37*45cm G.W.: 8.8kg Qty/container: 8100pcs/20'gp 17550pcs/40'gp 21000pcs/40'hq Delivery detail: 5-7days