The USB charger featured in this video is from SnapPower. For more information Click Here.
Draws Power Directly from Terminal Screws
Tabs on the back of the cover plate make contact with the terminal screws on the outlet eliminating any need for wiring.

Simply Snap the Cover Plate in Place
Installation is as simple as removing the existing cover plate and replacing it with the SnapPower unit. The USB charger has constant power without batteries.

..
Leaves All Outlets Free for Use
Outlets, especially on a kitchen backsplash, are at a premium with plenty of appliances vying for their use. Also, the device's slim design means that it protrudes from the wall only a fraction of an inch.