Desarae is an African-American superpowered teen. She has the ability to control sound completely. She has made Jr Resistance escapades literally silent, she can use it to create a distraction, shoot sound waves etc. She has perfect control over her powers, which she has had since the age of five.
When Desarae was five a scientist secretly experimenting with sound accidentally caused a small explosion, although it was easily controlled it sent out shock waves. It was in the country as Desarae had moved three years prior, and no one else was around really. Desarae was hit by this shock wave a gained her powers.