sonoff 4ch инеллекђалнй модђл wi-fi Ѭазем rf бепѬоводной пђл дианионного ав

['-- wireless control design, do not worry about the distance.', '-- multiline control design, controls multiple electrical appliances at the same time.', '-- the product is typically made from cold rolled carbon steel with a zinc-plated or chromated bright surface finish.', '-- with wide voltage, suitable for multiple national standard electricity.']