Xuan June’s hearing aids have kept her company for pretty much her entire life. They go with her to school, tag along for a ride while she skateboards and sit snugly while she draws and dreams up goth-cute fashion designs.In this episode, Xuan June is getting fitted for a new pair of hearing aids — and she’s invited Molly to come with her! Together they learn all about how these cool superpowered devices work. Plus, we find out how sound travels and get a chance to guess TWO mystery sounds.This episode was sponsored by: Disney Plus Originals (Disneyplusoriginals.disney.com - Disney Plus Originals' Moon Girl & Devil Dinosaur)Indeed (Indeed.com/BRAINS - Terms and conditions apply. Cost per application pricing not available for everyone.)Thrive Market (Thrivemarket.com/brains - For 30% off your first order, plus a FREE $60 gift.)*****Do you have your Smarty Pass yet?? Get yours today for just $4/month (or $36/year) and get bonus episodes every month, and ad-free versions of every episode of Brains On, Smash Boom Best, Moment of Um, and Forever Ago. Visit www.smartypass.org to get your Smarty Pass today!