Best Buy is the largest electronics and technology retailer in the United States, generating over $50 billion in revenue annually. It operates large stores that are divided into departments based on product categories like computers, mobile phones, TVs, and appliances. In addition to products, Best Buy offers services through partnerships with internet, TV, and phone providers, and through its Geek Squad brand which provides repairs and installations. It also owns private label brands like Dynex, Insignia, and Rocketfish that allow it to offer accessories and some devices at lower prices and with more flexibility.