FAVOLCANO 2500mAh Ultra Slim Rechargeable Portable External Battery Backup Charger Case Outer Jacket Battery Extended Power Bank for iPhone 5 5S (Purple) Emergency backup extended battery charger case, portable and convenient Intelligent charging system with an integrated 4-light LED status indication Rechargeable li-polymer battery pack, recycle use for protect the environment Security and stability, protective circuit for overcharging, over using and short circuit. High efficiency of power conversion, long lifespan cycle 3 months worry-free product guarantee for every purchase from FAVOLCANO. Package include: 1-FAVOLCANO&reg; Backup Battery Case for iPhone 5G 5S, 1-FAVOLCANO&reg; Micro USB Cable, 1-FAVOLCANO&reg; User Manual.