Hello Kitty Sit Cute Portable Mobile Charger for Iphone 3g 3gs 4g 4gs and Ipod Touch 3g 4g 1900 Mah compatible with iphone/ipod Convenient charging anywhere, anytime Mobile charger may be charged through the iphone/ipod wall charger or a USB connection When charging your iphone/ipod the 4 upper LEDs will indicate power lever of the unit. To check the remaining capacity of the mobile charger when not charging and not discharging, press the battery level indicator button at the top right of the unit.