infrared emitting device which promotes improved hearing

Earphones with heart rate monitoring function; earphones

Transmitters, receivers and transceivers for use with audiologic communication devices; transmitters, receivers and transceivers for use with hearing aid apparatus and instruments; radio signal devices; apparatus and devices for recording, transmission or reproduction of sound for use in connection with hearing aids; digital wireless hearing aid accessories; batteries; headsets; in ear receivers; ear buds; microphones; software for hearing aids and cochlea implants; software for audiologic co...