5200mah power bank external battery pack 1.approved for CE,ROSH,FCC 2.LED light indicator 3.High quality best price ... Compatible with HTC One X, One S and One V mobile phonesTo keep your device fully charged wherever you ... can use it at ease.7. With intelligent switch, it can extend built-in battery life, higher safety.mobile power ... DC, PSS adapterOwner's manual 5200mah power bank external battery pack