Travelers will no longer need to constantly switch SIM cards in their phones to enjoy local telco services. By attaching the slimduet® SIM onto their original SIM card, users can choose and purchase from various local operators, staying connected with data or voice plans. slimduet® APP allows users, prior to travel, to purchase prepaid plans from local mobile network operators. The soft SIM with the purchased prepaid plan is then downloaded onto the user’s mobile phones over the air. Upon reaching the destinations, users can immediately connect to the local telco services and stay online. slimduet® as travelers’ best companion, keeps you always in touch with family and friends, sharing photos on facebook all the way, and peace-of-mind walking thru mysterious alleys with Google map.