Cellular radio telephone apparatus; cellular radio telephone instruments; point-to-point radio communications apparatus; portable radio-telephones; radio control apparatus; radio receiving apparatus incorporating sound reproducing apparatus; radiocommunication apparatus; radio-inter-communications apparatus; anti-noise apparatus for noise suppression; anti-noise filters; noise suppression apparatus; voice signalling apparatus for use with mobile radio systems; voice signalling apparatus for use with radio paging systems; apparatus for remote data transmission; electronic signal transmitters; portable transmitters; radio transmitters; wireless transmitters; computer apparatus; computer components; computer firmware; computer hardware; computer programs (downloadable software); computer programs for the control of telecommunication apparatus; computer programs for use in telecommunications; computer software; computer software (programs); voice actuated computer apparatus; integrated software packages; sound monitoring apparatus; ear defenders; ear protecting devices; ear protectors; ear protectors against sound; earphones for recording apparatus; mobile radio broadcasting units; mobile radio receiving apparatus; mobile radio transmitting apparatus; mobile telecommunications apparatus

Hearing protectors to prevent loud noises damaging the hearing