Short description: The USB-C port supports a maximum output of 20W. Whether you have an iOS or Android device, charge your iPhone or Android device from 0% to 50% in just 30 minutes, a charging block with two USB-C (PD 20W) ports and two USB-A (3.1A) ports. Allows users to charge their phone, tablet, and headphones simultaneously, charging 4 devices simultaneously at high speed to minimize waiting time. Protects devices from overheating, overcurrent, overcharging, and short circuit; charging will automatically stop when the battery is fully charged. Very compact size (product dimensions: 13 x 9 x 3 cm; 70 grams; Comes in 2 units, Package dimensions: 17x13x3cm; 150g).