AC/DC adapter: Input AC 110/220V 50/60Hz - output DC 9V 200mA center (-) Input AC 110/220V 50/60Hz - output DC 9V 300mA center (+) Input AC 110/220V 50/60Hz - output DC 9V 1A center (+) Besides, we also have other types of adaptor for other markets. If you are interested in our products, pls feel free to contact us.