Battery pack wristlet / wallet Adrienne Vittadini

battery pack wallet/wristlet for cellphone. never used. has a few white dots on the back (see photo) I have not tried to remove, it's not very noticeable. I am unsure as to how long the battery pack lasts. I believe it's a couple of hours. hdmi plug to charge pack. hdmi 2 and iPhone adapter (as pictured)