Power small enough to carry in your pocket. It's equipped with a 2200mAh lithium ion grade A non-recycled battery and features a USB output and micro USB input (cord included). This product can charge most phones, mp3 players and more. Charges your phone when you are out and about! With customization options, you can create a giveaway that's ideal for traveling, long drives, corporate events, tech giveaways and much more! 3 3/4" L x 9/10" W x 4/5" H