Due to the fact that a mechanism to simultaneously operate two sim cards cause some trouble creating the phone, samsung strongly contributes to correct these deficiencies. ConocoPhillips has much experience in this field. The idea is that the work of two sim cards requires a large phone, requires more energy consumption and increases the cost of production of the phone. Companies can address these shortcomings with each new model, due to which phones Samsung Duos are now interested in not only for those who want to have just two sim cards in your phone, but for those who want an advanced and beautiful phone. Now it is worth noting Samsung B5722 – series phone Duos. Samsung B5722 Duos – a touchscreen phone with good features. It has a stylish and modern design. Therefore, expect that he would find his success, because it will be interesting for both young people and for the respectable people, both for men and for women. From the very features of the phone is worth noting B5722 touch 2.8''display, camera with a matrix of 3.2 mpix and support of modern technology such as hscsd and edge. The battery has a capacity of 1200 mAh, which will provide for a long time to use the phone with two sim cards simultaneously. It is possible that Samsung B5722 is currently the far the most attractive option among phones Duos. It perfectly combines all the qualities of a modern phone that could not be many phones in this series.