Sounds in everyday life span a range of frequencies: from low-frequency sounds like traffic noise and thunder, to mid-frequency sounds such as human speech, and up to high-frequency sounds like birdsong or alarms. For individuals with hearing impairment—particularly age-related hearing loss—it often becomes more difficult to distinguish certain sounds, such as the voices of children or specific consonants like "s" and "f," which fall into the high-frequency range.

The in-ear detection system significantly enhances the listening experience for elderly users. By ensuring optimal operating function and resolving common issues such as howling, it enables people with hearing loss to more fully connect with their surroundings. TWS self-fitting over-the-counter hearing aids are an excellent choice for anyone seeking user-friendliness and hearing clarity.

Self-fitting hearing aids combine the advantages of various types of hearing aids, adopt earplug models, avoid howling, provide clear sound quality, conduct accurate hearing tests, and provide personalized hearing solutions

High-frequency sounds and low-frequency sounds can bring different experiences to our hearing. Self-fitting hearing aids support self-hearing tests, support fine-tuning, are equipped with Bluetooth, have in-ear infrared sensing functions, and provide a comfortable, clear sound quality and no whistling wearing experience.