wow thats a nice looking unit. Nice design features.

What does program do?

It is for the auto reverse flip flop....

Also behalf side 2x headphone out , DC3V in, NR switch

Cassette selector "Normal/Metal".

Battery life is 10 hour uninterrupted working with 2 pieces AAA code battery.

I can't find it the same model in internet when i research it seek area of browsers.

I think very rare model this Sharp JC-1

I sold one new in box!!

The same model?

I do think so, do not remember very well

I believe it had a tuner!!!

a silver one

Thats model produced  red colour model only

Maybe this model?

It was the one on the left!!

What about this models

"Sharp JC-1" is this model first auto reverse produced compact the cassette player from Sharp since 1982,, i was uploaded up side the picture..