The Mohu Jolt makes picture quality clear and vivid, and can even pull in channels outside your antenna"s range. Colors pop and dance. Images are fluid and crisp. Flipping between channels happens in the blink of an eye. The Jolt improves your antenna"s performance, so you can get back to more important things, like watching your favorite shows. And with USB power connection, the Jolt only uses power when your TV is turned on. Exactly how an amplifier should work.