It's annoying when you run out of battery - this Belkin power bank can give you up to 38 hours more battery life for tablets, or a whopping 140 hours for a smartphone. You can charge up to 3 devices at once using the 2 USB ports and 1 USB-C port.Good to know- There's a USB to USB-C cable included in the box so you'll have everything you need to get started- The LED light lets you know when it's time to recharge- It comes pre-charged and ready to use- The 2 year warranty gives you peace of mind while using it