Echo is a blind Bat pony. Who grew up in Bat pony district in cloudsdale.She wears a band around her foreleg to show that is blind. She found out that she could see objects by useing echolocation. But she couldn't use echolocation cause she would wake up the pegasus trying to sleep.When she got old enough she left cloudsdale and moved to the badlands. She became a cave explorer. She works with a team of cave explorers to map out cave systems, to find it riches.continue in comments.