The online retailer planned to unveil Amazon PayPhrase on Thursday. Amazon customers can choose a unique phrase such as "Shopping Fanatic" and a four-digit number that they can then use to buy things on Amazon.com and other Web sites that accept it.

You can set up multiple phrases and PIN numbers to relate to different credit cards or shipping addresses that are stored with Amazon. Parents can also set up a phrase for their kids to use along with a set amount of money each month and other restrictions.

A service of YellowBrix, Inc.