iHome External Battery Pack for Universal/Smartphones - Gray All-In-One Complete charging solution integrates battery, all charger, and lightening cable. No extra cables needed. Extra Battery Life- For 15 hours of web browsing, 19 hours of talk time, 66 hours of music, or 15 hours of video Rapid Charge - High power port allows you to charge any Micro USB compatible tablet or smartphone more quickly Works with all Micro USB compatible devices LED indicator illuminates to let you know how much power is left