HR Bank integrates an exercise bike, energy storage and generator. A 15-minute bike ride can charge a smartphone; an hour's ride can charge a laptop. It connects to renewable energy sources, stores excess energy in its 2kWh battery for later use, and powers household appliances in the event of a power outage. This capacity can charge more than 20 laptops, run the refrigerator for 3 days, or make 150 cups of coffee. HR Bank is made of recycled aluminum, which is durable and easy to repair, and can be customized in various colors and materials to suit any interior decoration. It provides a sustainable energy management solution while encouraging physical activity. The case comes from IF official website and is only for case sharing.