What type of microphones are considered non-directional?

Omni-directional microphones are characterized by their ability to pick up sound equally from all directions. This feature makes them particularly valuable in various settings where capturing ambient sound or sound from multiple sources is desirable. For example, in hearing aids, omni-directional microphones can effectively capture a more natural listening experience by picking up sounds from the environment, enabling users to hear conversations occurring around them without having to focus tightly on a specific source of sound.

Other types of microphones, such as directional microphones, are designed to focus on sound coming from specific directions, which is opposite to the omni-directional type. Dynamic microphones can function in various roles but are not specifically categorized as non-directional. Laser microphones technically capture sound in a different manner and are not traditionally classified as either directional or non-directional microphones. Thus, the defining characteristic of omni-directional microphones as non-directional aligns well with their function and usage.