Power bank is mobile charging without home electricity charger he is very good product of any time any think mobile charging but power bank is over time use to mobile is bad mobile battrey is ded so power bank use but under time not for all time power bank is contect to phone best power banks is samsung power banks 2000 mah 4000 mah and 10000 mah and sony edision power banks lenova power banks etc . Good price and good product power bank power bank contect to mobile is limit time so very intresting product buy now