With this product,you can control curtains via 3 methods:touch the panel,wireless control via smart life APP or voice control via alexa or google home. Besides,this is Europe standard with world wide working voltage AC100V-250V. Europe standard switches suitable for most european countries including UK. We have US model as well. 2.Voice control via alexa or google home If you want to achieve such function,you also need to download the amazon alexa or googl home app form your mobile phone,then make pairing between the smart voice box and switch,you can control the switch via voice at last. 3.App Remote Control You can easily download the "smart life" from your apple store or android store, then install your switch according to wring and match the switch with your smart life app,at last you can control your lights via your smart life app.