Stay on top of your data and battery usage The Sony Xperia E dual Android mobile phone has everything you need to stay in control. The data usage app helps you manage your costs and keeps your phone bill free from unwanted surprises. And thanks to the power management functionality， you'll be on top of battery drain too. First class basics With HD voice* you make yourself heard， loud and clear. Calls from school yards and city streets are no problem either. The noise cancellation feature filters out the background sounds. The person you're talking to will hear you as clear as if you were standing next to him. * HD voice functionality is operator-dependant. Music the way you want it The "WALKMAN" app on your Sony dual SIM mobile phone is all about ease of use - and great music. You create your own playlists in a snap. So you can spend your time listening to music， instead of trying to figure out how features and functions work. Crank up the volume with xLoud loudness enhancement and get the sound mix just right with the graphic equaliser. Convenient call handling with a dual SIM mobile The dual SIM cards are perfect when you want to separate work from play - and handle your calls in a cost-efficient way. You switch between SIM cards anytime with a simple touch. Or make the switch happen automatically: just preset which SIM card to use at specific times of the day.