video and audio recordings, computer software, computer programs and instructional material sold therewith as a unit, all featuring information about aircraft, aircraft parts, aviation, avionics, aerospace products, or maintenance, operation, repair or training associated with aircraft and/or aerospace products, parts, [ or support equipment; ] digital calculators; time zone calculators; sunglasses; software in the nature of computer screens; radios [ and radios incorporating clocks; binoculars; ] [ telephones; levels;] and, computer mouse pads