"Switch Alarm" will automatically turn on your radio at a pre-selected time to awaken you to music, or to turn on your favorite radio program. It also has a conventional alarm signal which can be used or not, as desired. Simply plug your radio into the receptacle in the case back and set "Switch Alarm" for the time you want to be awakened.
My 8HA61 above (before I sold it). As far as I could tell, the only difference between it and the 8H61 (below right) was the larger time set knob which was really a boon. Nearly all are going to come with the white knobs with the arrow but the brown ones were on it when I bought it so maybe that was what was going out the door that day. I'll wager no one has seen one like the one in the dealer catalog (below-left) but I'm always looking! The case design is simply a reduced Musalarm.