Amazon just had its greatest holiday season ever

The voice-controlled Echo Dot was the top-selling item

And the retail giant had some fun detailing just how great it was. The voice-controlled Echo Dot was its top-selling item, followed by its Fire TV stick, Fire tablet and Echo. Shoppers with an Amazon Prime membership, which costs $99 a year and offers free two-day shipping, purchased more than one billion items during the holiday shopping season. December 19 was the peak shipping day for Amazon (AMZN, Tech30), while December 23 was the biggest day for Prime Now deliveries. Among the most popular items for the two-hour delivery service that day were Oreo cookies.

http://money.cnn.com … Wed.,  28 December 2016