mophie’s power boost® battery contains a large 20,000mAh internal battery. Plus, the power boost portable battery features multiple USB ports so you can charge your phone and earbuds simultaneously. A versatile USB-C port means you can charge a device then recharge the power boost from that same port. Slip it in your bag and stay powered through the day with up to 2.3x/4.8x full phone charges.**Number of charges are estimates bases on a wired charging, using a fully charged pre-production power boost to charge an iPhone 12 in default settings from 0-100%. Results will vary based on environmental factors, device settings and individual usage.mophie Universal Battery Power Boost® Portable battery with USB-A and USB-C inputs, 20K, Black