A novel interaction method for eyes-free control of a mobile phone or a media player is introduced. The method utilizes acceleration sensors along three axes to sense input gestures, such as pointing and tilting. A spherical auditory menu and feedback are provided using speech and 3D sound. A gestural pointing interface, multiple menu configurations, and their implementation details is presented. Evaluation results suggest that fast and accurate selection of menu items is possible without visual feedback. Combining the gestural interface, positions of menu items in 3D and a browsing method with a dynamically adjustable target size of the menu items allow large menus with intuitive, easy access.
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