Echo Echo

Echo Echo is a Sonorosian alien from the planet Sonorosia. Echo Echo is voiced by Dee Bradley Baker.

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 a number 10 port on it, and what looks like casette tapes on his lower legs. Another one is his gigantic head.

Abilities
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. His cloning capabilities also seems 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 in Grounded. Echo Echo can also detect vibrations in the ground. They have to go back into one body before transforming back to Ben like Ditto or else the clones become multiple personalities as seen in Duped. He is made out of silicon.

Alien Force:
Ben 10 Returns: Part 2 (First appearance)

Kevin's Big Score

Darkstar Rising

Alone Together

Good Copy, Bad Copy (Used by Albedo)

Undercover

Grounded

Unearthed

Fool's Gold

Vreedle, Vreedle

Single-Handed

Trade-Off

The Secret of Chromastone

Above and Beyond (Last appearance in Alien Force)

Ultimate Alien:
Duped (First reappearance)

Translations

 * Italian: Eco eco / Echo echo

Trivia

 * Echo Echo seems to be the only alien form that Ben uses that shows knowledge of the Omnitrix.
 * Echo Echo knew how to turn the Omnitrix/Ultimatrix symbol to human form by turning it clockwise as seen in Alone Together and Duped.
 * He is made of silicon.
 * He is the first of Ben's aliens to answer his cellphone.
 * Echo Echo and Ultimate Echo Echo make the 2nd and 3rd multiplication aliens, the first being Ditto.

Ultimate Form

 * Ultimate Echo Echo