1) Like old records 2) Like some old records 3) Mono 4) Monophonic 5) One-eared 6) Single-channel 7) Type of old record 1) Mono 2) Monophonic 
Monaural or monophonic sound reproduction (often shortened to mono) is single-channel. Typically there is only one microphone, one loudspeaker, or (in the case of headphones and multiple loudspeakers) channels are fed from a common signal path. In the case of multiple microphones the paths are mixed into a single signal path at some stage. Monaura...
Pertaining to one ear. ... Origin: mono-+ L. Auris, ear ... (05 Mar 2000) ... 
Type: Term Pronunciation: mon-aw′răl Definitions: 1. Pertaining to one ear.
Monaural: Relating to one ear. Hearing aids may be monaural (for one ear) or binaural (for both ears). From monos, single or alone + the Latin auris, ear = a single ear.
[adj] - relating to or having or hearing with only one ear
adjective relating to or having or hearing with only one ear; `monaural deafness`
monophonic (def. 2). · of, pertaining to, or affecting one ear.