The power pack will extend the battery your iPhone by doubling its charging capacity. * Enjoy your iPhone for voice,music video games and business applications with extended,stable power. * You can experience up to two days or more of interrupted iPhone power,depending on your usage. * Slip it in,show it out!The thinnest power pack for iPhone 5 all over the world! * Protect your iPhone 5 from slipping.Eloquent styling-Compliments the Phone profile.