MagSafe Compatible for up to 15W: Supports wireless charging at up to 15W for convenient and fast charging. It also maximizes charging efficiency with 20W in/output via its built-in USB-C and Lightning cables Efficient and Cool: With high efficiency and advanced temperature and battery management, this power bank offers up to 10% greater power transfer efficiency, providing not only more power for your iPhone but also operating at temperatures up to 5 lower. It can provide up to 2 full charges for an iPhone 16, perfect for daily use and travel