As Golden Girl, Audrey has no special powers to speak of.
However, she comes from a family of acrobats, and is well trained in acrobatics and arial feats. She is also an excellent boxer, and is proficient in hand-to-hand combat.
When she gets older, and changes her moniker to Golden Guardian, she will be given The Bands of Boudica by her mentor Silver Queen (Sarah Sterling). Special powers are bestowed upon The Bands of Boudica, but only if your heart is pure, and the powers are used for good. Otherwise, they'll just turn into worthless stones. The bands increase strength, durability, and fighting power, but only if you're pure of heart. If you are evil, the bands won't work.