Can anyone explain these orbs to me?

A levitating charger for the Apple Watch and Pebble came up on Kickstarter today. It's called Lift, the Anti-Gravity Levitating Smartwatch Charger and Lamp. We already have floating lightbulbs, floating cups, floating phone chargers. Pretty much everything levitates now, except for humans and hoverboards. It’s a great time to be a levitation enthusiast.
Feel free to check out the whole levitating charger experience over on Lift’s Kickstarter page. Here’s wha