The Solar Tough Tested ROC10 is a powerful power bank with a capacity of 10,000 mAh. It features three ports for simultaneous charging of multiple devices and comes with a charging cable. The power bank is water-resistant and can even be used underwater. It also has a solar charger feature and is designed by Tough Tested, a trusted brand in cell phone accessories. The ROC10 is made in China and has USB-C connectivity.