... phone conversations.Light-weight, ultra-thin design.Remarks:External battery with stand for iphone, ipad, Samsung, Blackberry, mobile ... Detailed Specifications ParametersBattery TypePower pack for iphone 4Battery Capacity3000mAhPortable Battery PackExternal Power packCompatible BrandiPhone 4G/4GSDimension62(L) x ... StandardCE & ROHS & FCC For iPhone4/4s/HTC/LG/Samsung External Battery and Power Bank