When launching a new product feature, such as a voice assistant on vacuum cleaners, it is crucial to focus on how this feature enhances the customer experience and the specific benefits it brings. In this case, sparking the customer's interest and focusing on the benefits of the voice assistant aligns with the ITIL 4 principle of 'Focus on Value,' which involves understanding what customers value and clearly communicating the benefits they will receive from the service.

Marketing efforts should be geared towards illustrating how the voice assistant improves convenience, efficiency, and overall user satisfaction. This approach is part of the Engage activity within the Service Value Chain, which emphasizes understanding and meeting customer needs through effective communication and marketing strategies.

By focusing on the benefits, the marketing team can generate excitement and demand for the new feature, ensuring a successful product launch and enhancing customer loyalty.