The power bank 2200 is powerful yet small enough to carry in your pocket! Don’t be tethered to your wall charger. This power bank charges your phone when you are out and about! A good value at a low price, this cool phone charger is the perfect back drop for your promotion. It features a button to check the power level. Must use with your device’s own charging cable. this is the ideal back up power charger for your mobile phone or bluetooth mobile accessories.