1. Specification: 850w, 50hz, 220-240V( or 850w, 60hz, 110-120V ) 2. Certificate: GS, ROHS, UL, CE 3. Faster steam production in less than 30 seconds. 4. Volume: 7 liters total, Two layers 5. The real size: 355*209*238mm 6. 60-minute digital timer, LCD display 7. Two-color indicator light 8. Two sides water filling 9. Water-level indicator 10. Material: PP Inner packing: Each set in color box, box size 40.2*26.3*29.5cm. Outer packing: 4 sets into one master carton