The purpose of this paper is to identify the relationship between user attitudes, technology adoption, external factors and the intention to use digital bag tags, and to develop and extended Technology Acceptance Model (TAM) by integrating external factors into the original TAM constructs. Positive relationships were found between the original TAM constructs and the external factors; relative advantage, system quality, availability/ mobility, self-efficacy, security/privacy and social influences but negative relationships were found in regard to cost. Attitudes played a significant role in prediction intention. However, perceived ease of use had stronger support than perceived usefulness towards attitudes. Geographic difference and travel frequency was also found to have relationships with overall technology acceptance.