What is an example of an electronic travel aid?

An electronic travel aid is designed to assist individuals, particularly those with visual impairments, in navigating their environments safely and effectively using technology. The correct option represents a device that enhances mobility and provides feedback about surroundings through electronic means.

In contrast to traditional mobility aids, such as a standard long cane, which relies on tactile feedback, an electronic travel aid may use sensors, cameras, or other electronic components to gather information about the environment and provide alerts or guidance to the user.

The wheelchair-mounted mobility device mentioned is an example of an electronic aid since it could incorporate technology that helps users avoid obstacles or navigate their surroundings more safely, thereby improving their autonomy and mobility.

Other options, such as a portable audio guide, serve a different purpose by providing auditory information about a location rather than directly aiding in mobility. Similarly, a handheld magnifier is designed primarily for visual enhancement tasks rather than travel assistance. These distinctions clarify why the chosen answer is the most fitting representation of an electronic travel aid.