Technological devices for improving acoustic clarity and audio transmission and reception for assisting persons with sensory or cognitive impairments and to preserve hearing levels sold as an integral component of adapted stereo headphones; cellular telephone and voice over internet protocol telephone headset units featuring technological devices for improving acoustic clarity and audio transmission and reception for assisting persons with sensory or cognitive impairments and to preserve hear...

Technological devices for improving acoustic clarity and audio transmission and reception for assisting persons with sensory or cognitive impairments and to preserve hearing levels sold as an integral component of headphone wires; cellular telephone and voice over internet protocol telephone headset unit wires featuring technological devices for improving acoustic clarity and audio transmission and reception for assisting persons with sensory or cognitive impairments and to preserve hearing l...

electronic devices for assisting persons with sensory or cognitive impairments, namely, stereo audio amplification units, and radio audio amplification units