This document analyzes potential brand extensions for Sony Ericsson and Motorola mobile phone brands based on customer research. It finds that Sony Ericsson is viewed most positively for sound quality, so extending to sound systems could be successful. Motorola is seen as having strong battery life, so battery products like inverters could leverage its brand equity. The research surveyed customers on preferences for the mobile brands and opinions on potential new product categories for each to enter. It concludes category extensions may differ for the brands based on their varying brand images and customer perceptions.