... and wireless transmissionSupport FM radio, MP3, MP4, E-book readerSupport:Advanced App Killer, Browser, Yahoo, ... Do, Alarm, World Clock, Calculator, Currency Converter, Stopwatch, E-book, Reader, Latitude, Maps Number Dependency, MSNBattery: Lithium ... BatteriesBattery standard voltage: 3.7VCharge voltage: 4.2VBattery standard capacity:1500mAhBattery Life:- ...