Top features: - Pre-charged and ready to go - Charge two devices at the same time - USB-C port provides fast charging Pre-charged If you're running low on battery and need to charge up your phone or tablet, the Sandstrom S13PBQC17 Portable Power Bank is an essential accessory, which comes pre-charged so you're instantly ready to go. Charge two devices With enough power to charge up your smartphone four times or your tablet twice, the S13PBQC17 is great for keeping yourself connected at festivals, on holidays or wherever you are. And because of the two USB charging ports, the Sandstrom Power Bank has the ability to charge up your tablet and your phone at the same time. USB-C port The USB Type-C port is great for compatible smartphones or tablets, for incredibly fast charging that only takes a few minutes.