Echo Echo

Echo Echo is a Sonorosian alien from the planet Sonorosia. He is 1 of the 6 ultimate and 12 aliens in Ben 10: Ultimate Alien.

Appearance
Echo Echo is a small white alien whose body is a living amplifier. One of the most noticeable features is a square appendage resembling an MP3 player behind his back with the number 10 on it, that connects to his ears, that look like headphones

Echo Echo can scream at ultrasonic frequencies capable of overloading machinery and stopping projectiles in mid-flight. He also has the ability to duplicate himself, not unlike Ditto, but different in that the clones aren't linked in any way, allowing entire groups to be knocked out without hampering the rest. Interestingly, his clones do not weaken with number. their power stays the same. His cloning capabilities seem limitless!

By combining these two aspects, Ben can create a "Wall of Sound," where he and his clones can redirect projectiles back to their source by bouncing them off of strategically placed clones, and "Echo Chamber," where he and his clones attack from all directions( In a circle, as seen in Above and beyond).

Echo Echo can also use echolocation, as seen in Alone Together, and can channel vibrations to enhance his power, as seen in Undercover.

He can transmit sound waves through speakers (such as phones), as seen inGrounded. Echo Echo can also detect vibrations in the ground. They have to go back into one body before transforming back to Ben like Ditto.