Description: Hearing aids; Medical hearing instruments and parts of such devices; Light emitting diode (LED) apparatus for lighting, incorporated into medical instruments; Light-based medical devices, namely, a light emitting diode (LED) device for increasing the human body's own production of collagen; Medical testing devices for measuring hearing loss in patients, namely, audiometers; Phototherapeutic apparatus for medical purposes; Phototherapeutic apparatus for medical purposes, namely, a LED (light-emitting diode) light source for medical and aesthetic skin treatments | Hearing aid services; Speech and hearing therapy
