Simply set a Qi-enabled phone on top of the device to start charging. You can also use it as a regular portable charger using its USB-A port or its integrated USB-C cable, though. According to The Verge, Tesla sent out emails to customers who purchased the charger when it was first released, telling them that they'll receive a $16 refund to make up for the price difference. The company explained that it's now able to sell the wireless charger at a lower price, because it's now manufacturing it in bigger quantities. You can now buy the glossy gadget from Tesla's website, but you'll have to wait three to four weeks to get it because a bunch of other people want one, too.