High Capacity: This power bank has a huge 18400mAh capacity, which can charge your heated jacket multiple times on one charge. Compact design: This portable power bank has a pocket size, making it very portable and easy to use on the go. Multi functional connection: equipped with USB Type-C input and output as well as DC output, it can charge various devices. Digital display: Integrated digital panel provides real-time information about battery level and charging status. Reliable Power: This portable power bank is designed specifically for heated jackets, providing stable and reliable power to keep you warm at any time.