This is a DIY power bank case made of plastic, compatible with 10x18650 lithium batteries. It features a digital LCD display, dual USB ports, and supports quick charging. The case is designed for portable use, making it easy to carry and charge your devices on the go. It also includes multiple protection features such as temperature protection, short circuit protection, and over voltage protection. The case is available in multiple colors, including white, black, pink, and blue.