Echo Echo

Echo Echo is a Sonorosian alien from the planet Sonorosia.

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
 * Kevin's Big Score
 * Darkstar Rising
 * Alone Together
 * Good Copy, Bad Copy
 * Undercover
 * Grounded
 * Unearthed
 * Fool's Gold
 * Vreedle, Vreedle
 * Single-Handed
 * Trade-Off
 * The Secret of Chromastone
 * Above and Beyond

Ultimate Alien

 * Fame
 * Duped

Trivia

 * He is made of silicon.
 * He is the first of Ben's aliens to answer his cellphone(Rath was second).
 * Echo Echo is the 3rd alien with the self-duplication ability. The first being Buzzshock, the second being Ditto and the fourth one being Ultimate Echo Echo.
 * Dwayne McDuffie confirmed it's his favorite Alien Force alien.
 * As it was stated that upon recalibrating that the Omnitrix gave Ben new alien forms similar to those he had in the original series, Echo Echo could be given in place of Ditto for self duplication and Benwolf for the sonic screech.
 * "Wall of Sound" is a unlockable combo move in the videogame Vilgax Attacks.
 * Echo Echo's ultimate form still remains unseen.
 * Echo Echo is the only alien in Alien Force, which Ben's clothes have an effect on his appearance(the 10 on his jacket appears in Echo Echo's back).

Ultimate Form

 * Ultimate Echo Echo