I don’t think that word means what you think it means.
Considered this, read reviews, Parrot site, watch a few videos. Looks like a lot of fun.
Killer on the deal: 8 min. battery life. And complaints of batteries being crap.
For less than $30 you can get 3 batteries and a 3 battery charger.
That looks like a worthy upgrade.
https://www.amazon.com/Upgrade-Morpilot-Battery-Protective-MiniDrone/dp/B01BBI17F6
Saw that, too. I like that someone specifically states that these fit the Swing.