How to add a $1 bill to your phone

The U.S. Federal Reserve says it has added $1 bills to some phones that are on sale.

The phones, called the $1s, will come in black, red and green colors.

The $1 cards will be available in stores starting Friday, and retailers will sell them at a limited time.

It’s the latest step to expand the $2 and $5 bills to the mainstream market.

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