Assistive listening device for the hearing impaired; Cosmetic apparatus using ultrasound for performing aesthetic skin treatment procedures; Digital hearing aids; Electric hearing aids; Electrical hearing aids; Electrically-operated hearing aids; Electrically operated hearing aids; Electronic aesthetic skin treatment devices using light emitting diodes, namely, infrared, red, orange, yellow, green, and blue wavelengths for generating light rays; Hearing aids; Hearing aids for the deaf; Lasers...