This study intends to elucidate which view customers has about Sony Ericsson as a trademark compared with it?s biggest competitors and how the company can expand and create added value around its products. The aim with this essay is to study and to analyze Sony Ericsson?s creation of value and to increase understanding about strategy development. We have chosen to do this study on the basis of customer perspectives.We have used existing theories that treat matters: added value, marketingmix and trademark image.