Feedback is an alien in Ben 10: Shadows. He appears to be Ben's 'electrician'.
Feedback is more muscular with gold bolts on his shoulders and arms. He also has a black and purple color scheme. His antennae are noticeably longer than when he was eleven. The round plugs on his fingers are now square.
Feedback has the ability to absorb and redirect any kind of energy including Mana even from a distance by using his antennas, tail, and fingers.
He has been shown to possess the ability to shoot electricity from his hands without absorbing any, and propel it out in electric punches.
He has also been shown to have enhanced agility and jumping. Feedback also has enhanced strength.
Feedback can run on the electrical lines allowing him to move very fast. Feedback also can project energy balls by joining his fingers.
Feedback can fly by shooting energy at the ground.
Feedback needs to absorb energy from time to time to fight, thus energy contained within him will deplete after use.