audio-technica Hearing Assist Earphones "MIMIO ASSIST ONE" Black Used a few times, but there are no noticeable scratches or stains, although it is a used item. It's packed with features that other apps can't compare to, such as optimization by inputting an audiogram, customizing functions that can be operated with the buttons on the main unit, creating and saving your favorite programs, and reliable Bluetooth connectivity. Utilizing the know-how cultivated in the design of wireless earphones, it clearly collects surrounding sounds with multiple high-performance MEMS microphones. Using the dedicated smartphone app, "hearing fitting" can be customized to the individual's hearing, making it easier to hear conversations and TV sounds that are difficult to understand. You can select from 4 preset scenes: Standard / TV / Conversation / Outdoor. In addition to the preset scenes, you can add up to 4 custom scenes to your liking. We have poured in the design know-how of the fully wireless earphones we have cultivated so far, and pursued a design to achieve a more comfortable fit. In addition to wearing verification with a large number of ear shape data, two types of ear tips with different shaft lengths are included to fit more people's ears (ear tips / ear tips long). Adjustments can be made to suit the scene and user, such as "self-voice suppression" to reduce the echo of your own voice, "howling suppression" to suppress unpleasant sound loops, "environmental noise suppression" to suppress surrounding noise, "impact sound suppression" to protect your ears from loud noises, "wind noise suppression" to reduce the effects of wind noise, "equalizer settings" to adjust the sound quality to your liking, "clarity settings" to make people's voices easier to hear, and "microphone directivity switching" to emphasize the sound in the direction you want to hear. Equipped with a hybrid noise-canceling function, it effectively reduces surrounding noise. It creates a quiet environment, allowing you to enjoy music and videos with clear sound quality. It can be used continuously for about 10 hours with the earphones alone, and up to about 40 hours when used with the charging case.