The ZEROLEMON Battery Case for iPhone 15 Pro Max is a heavy-duty protection shield made from Thermoplastic Polyurethane material, providing shock-absorbent properties to keep your device safe. With a sleek black color and a compact design, this battery case is easy to carry and use. It includes 1 Lithium Polymer battery required (already included), and offers wireless charging capabilities for added convenience. The product dimensions are 6.74 x 3.48 x 0.99 inches and weighs 8.2 ounces, making it a reliable and efficient accessory for your iPhone.