LAS VEGAS -- International CES 2014, as it's officially called, doesn't actually open for two more days, but there's already plenty to see here in Las Vegas. Take a peek through this slideshow to get a summary of the most interesting tech we saw today.
The biggest event of the day was CES Unveiled, where vendors give press an early look at some of the things they'll be showing off at CES. The first photos in this collection are from that event.
We've seen playful BeeWi robots before and they made another appearance at CES this year. Here are some BeeWi bots that battle each other
, controlled by smartphone, at CES Unveiled on Sunday night.
For a summary of the highlights of the day, see our related story: What mattered on Sunday at CES 2014
. We'll publish summaries in words and pictures each day of the show, so come back for more all week.