Installation apparatus for receiving, recording and displaying sound, video and digital information; digital video adapters and interactive video adapters for use with computers, video apparatus; radios; DAB radios; digital radios; digital radio systems; portable radios; wireless radios; radios for vehicles; CD players; combined radio and CD players; radio alarm clocks; internet radios; radios with docking stations; speakers; portable speakers; smart speakers; amplifiers, decoders; cabinets and cases for speakers; headphones; earphones; batteries; chargeable batteries; carrying cases for radios; carrying cases for digital music players; downloadable digital music; leads, cables, plugs and connectors; accessories, parts and fittings for all aforesaid goods