These girls hearing grandpa's voice on Christmas will make you cry

Social media was a whirlwind of photos of kids opening gifts Christmas Day. 

But it's two little girls from Oklahoma and their new teddy bears that stole our hearts. They opened the gift, squeezed the bear's hand, then heard their grandfather's voice. The same grandfather who died about a year ago.

Just watch.

The video was uploaded by Jennifer Ramos, the 16-year-old sister of the girls in the video. Jennifer told Buzzfeed the bears contained messages from their grandfather through audio taken from videos.