After early success in Manhattan, Amazon.com, Inc. (NASDAQ: AMZN) announced that it will be expanding its Prime Now one-hour delivery service to Baltimore and Miami.

Amazon Prime members can use Prime Now to get daily essential items delivered to their doorsteps within 60 minutes using the Prime Now mobile app.

Eliminate The Daily Store Trip

Eligible Locations

According to Amazon, Prime Now is launching today in select zip codes in Baltimore and Miami, but will soon be expanding in both locations. Prime Now is available from 8 AM to 10 PM, seven days a week in eligible zip codes.

Two-hour delivery is free for Prime members, and one-hour delivery costs $7.99. Residents of Baltimore and Miami can download the Prime Now app on their phones, and they will be notified when the delivery service becomes available in their zip codes.

Prime Benefits

Amazon already has tens of millions of Prime members worldwide. In the U.S., Prime membership benefits include unlimited free two-day shipping on eligible items, access to Prime Instant Video streaming service and unlimited photo storage on Amazon's Cloud Drive. P

rime membership costs $99 per year.

Disclosure: The author holds a short position in Amazon.