OKB

Signal processors for audio speakers; Electronic products for the manipulation of the frequency, time, and amplitude characteristics of audio signals, namely, audio processors; Digital sound processors; Sound transmitting apparatus; Personal headphones for sound transmitting apparatuses; Earphones and headphones; Cabinets for loudspeakers; Loud speaker systems; Horns for loudspeakers; Microphones; Wireless headphones; Ear buds; Sound amplifiers

Sound processors adapted for use with prosthetic hearing devices; Hearing aids; Digital hearing aids; Ear trumpets; Hearing aids for the deaf; Assistive listening device for the hearing impaired; Wireless transmitters and receivers for use with hearing aids; Hearing aids with a noise cancelling function; Medical hearing instruments and parts of such devices