1)LCD display shows the status of battery charging, it allows you visulize the progress of the charging accurately. 2)Ni-hydride battery can be charged 500 times, it is a more economical and environmental choice. 3)Including AA battery(2300mAh,1800mAh) and AAA battery(900/700mAh) 4)Universal voltage from 100-240 volts, for worldwide use. 5)The LED indication will light up to show the charging begins and turn off when the batteries are fully charged. 6)The charger provides alkaline detection and automatic cut-off for excessive temperature or voltage. 7) Apply to any plugs.