Using high-sensitivity solar panels, with strong light sensitivity and a conversion efficiency of 24%; Four generations of high-sensitivity integrated laminated solar panels are used, which are waterproof and scratch-resistant; Apple and Android independent output design, intelligent restart, adapt to Apple's charging scheme; The folding design of multiple solar panels is smaller than the commonly used A4 paper after folding. It is easy to carry outdoors and saves space. Product Usage: Going out for long-distance driving, boating, business trips, outings, outdoor travel, adventures, and camps. Applicable to various portable digital products such as mobile phones, MP3/MP4, PDA, digital cameras, mobile digital devices--provide charging services. This product does not contain batteries, and it directly relies on sunlight to charge electrical equipment, and it can also charge power bank as a backup power supply.