The Ubio Labs Slim Power Banks 6000mAh are sleek power banks designed for rapid charging of smartphones, specifically compatible with Apple devices through a micro USB connectivity. With a capacity of 6000mAh, these power banks are perfect for on-the-go charging and come in a set of two for added convenience. The slim design makes them easy to carry around, ensuring you always have a reliable power source for your device whenever you need it. Perfect for those who are always on the move and need a quick charge for their iPhones or Android devices.