This is the Clairtone 7980 which is really a re-branded Conion C-100F. Apparently the Clairtone brand was marketed mostly in Canada. There doesn't seem to be any difference between the two other than the badge. The same box was issued under the Helix brand as well. Nonetheless, this is one of the more iconic boomboxes of the era and is highly sought after these days.
Released in the mid 80's it had all the features a boombox should have including a burlger alarm. It can get pretty loud with 22.5 watts per channel. they are fairly difficult to find in complete condition. Many are missing a knob or two and the battery compartment door and cassette door tend to break or get lost as well.
As mentioned above the Conion and Clairtone boomboxes are in very high demand and can fetch some good money at auction. One recently sold (9-2-2011) for $810.00 in pretty good condition. Tape 1 did not work and it had some mild cosmetic issues.