Great video, thank you for the upload! If I may make one criticism, it is that the video of the players does not match their position on the board, i.e. Mochy's hands are on the bottom while his body is on the top. This makes the viewing a bit disorienting.
Now I see for the second time this system on the left side of your screen to roll the dices but it seems not to be mandatory to use it as Mochi go's the classical way rolling his dices . Is it something new they try to introduce in backgammon ?
It is a dice scrambler, which prevents cheating. Some players are able to use sleight of hand to manipulate the rolls of the dice even with a dice cup; using the clear plastic scrambler eliminates this possibility. This is the product page: p40bg.com/index.php?id_product=43&controller=product
