本研究主要探討手提音響的外觀設計應如何融入消費者的期望意象以及運用其與產品的型態構成要素之關係建立設計原則。經產品資訊蒐集以及運用語意差異法進行意象評量問卷調查，得知手提音響之意象結構分為三個主成份，包含：美觀性、品質性與實用性；並依數量化I 類方法求得第一主成份「美觀」與第二主成份「高品質」的設計原則，最後依上述原則和作者的獨特創意設計出兩款產品樣本。

This research aimed at the appearance design of portable stereo considering consumers’ expected product images and applying their relationship with product’s form constituting elements to build up several design principles. By questionnaire investigation and market survey, portable stereo’s design and appearance characteristics were collected. Semantic differential technique was used to analyze and classify the design images into three major principles: beauty, quality, and practice. Based on Quantification I methodology, beauty and quality were identified as the highest and second highest priorities, respectively. Two prototype portable stereo designs were developed according to these two principles along with the authors’ design idea.