Why is RadioShack struggling?

Can you explain to me why RadioShack, a once-popular electronics retailer, is currently struggling? Is it due to changes in consumer behavior, the rise of online shopping, or perhaps the company's inability to adapt to the fast-paced technological landscape? How has the decline of brick-and-mortar stores impacted RadioShack's performance, and what steps is the company taking to turn things around? I'm curious to know your thoughts on the challenges RadioShack faces and whether there's still hope for the brand's future.