... acts both as a protective case and also as an excellent external battery.Optimized to lengthen your iPhone ... phone conversations.Light-weight, ultra-thin design.Remarks:External battery with stand for iphone, ipad, Samsung, Blackberry, mobile phones, camera, ... power consumption time3000 hoursMaterialPlasticProduct StandardCE & ROHS & FCC For iPhone4/4s/HTC/LG/Samsung External Battery and Power Bank