Only for US customers...
"Requirements
* A U.S. Amazon account
* A U.S. shipping address (50 United States and the District of Columbia only)
* An annual Amazon Prime membership or 30-day Amazon Prime free trial
* A payment method issued by a U.S. bank with a U.S. billing address in your 1-Click settings
* A device with access to the Alexa Voice Service (such as Amazon Echo)"