3 hours extra battery, with 2x times faster charging usb cable for iPhone and Android. BOLD Knot will give you that emergency boost of charge when you need it the most. It is going to keep you connected all the time. Just plug it to your phone and charge on the go while you do your calls, navigate the map, or send a message. BOLD Knot is a USB charging cable that charges your phone 2x faster than other cables. The knot will charge itself after the phone gets fully charged.