Magnetic Energy Fold charges three devices simultaneously (watch, headphones, smartphone) without losing power. It has three different contact points. Material: Made of plastic and aluminum, providing a minimalist and modern design. Input current: 5V/3A, 9V/2A. Output power: Watch 5W, headphones 2.5W, smartphone 15W. Protection: High voltage protection system, overheating protection, short circuit protection, electromagnetic radiation protection, and overcharging protection.