There’re few things more aggravating than running out of cellphone power in the middle of the day. Those looking to charge on the go may find their solution with the Power Pen. Cleverly combining two daily essentials, the Power Pen charges your mobile device using a powerful 700mAh battery embedded within. True to its name, the aluminum-brushed pen features not only charging features for Micro-USB- and Lightning-based devices, but also plays host to a stylus and ballpoint pen. A nifty device to get you out of the everyday jam, pick up the Power Pen now at Firebox.