Bao Xin Brand New 2200mAh Power Pack for iphone 5/5S Extended Backup Battery Case (Black) Extend the battery of iPhone by doubling its charging capacity.(Fit for iphone 5/5s) You can experience up to two days or more of interrupted iPhone power,depending on your usage. Enjoy your iPhone for voice,music video games and business applications with extended,stable power. Slip it in,show it out!The thinnest power pack for iPhone 5/5S all over the world! Protect your iPhone 5 from slipping.Eloquent styling-Compliments the Phone profile.