Sony Ericsson is a joint venture of Sony Corporation and the Swedish telecommunications company Ericsson to make mobile phones. The basic reason for this merger was to combine Sony's electronics expertise with the Ericsson's technological leadership. This is the reason why the handsets manufactured by Sony Ericsson are equipped with world class technology and features. It has always met the expectations of its users and it is still striving hard to produce handsets with more user-friendly features. You can choose Sony Ericsson sim-free phones from this section and can go with any network service provider of your choice as per your needs and requirements.