Power Pen is a pen that also doubles as a stylus and a back-up battery for your smartphone. At first glace, the device looks like a typical pen that needs to be twisted to reveal its ballpoint pen tip. But if you twist the pen's body closer to the top, you will notice that it's equipped with lightning and micro USB connectors that can be used to juice up iOS and Android devices courtesy a 700 mAh battery. The cap can be removed to reveal a USB port via which the Power Pen can be recharged.
While the Power Pen doesn't offer exorbitant battery capacity, it makes up for that with its versatility.
The Power Pen can be yours for just $40, and is available for purchase on Firebox's website.