Vintage 1991 Realistic Concertmate 370 Portable Electronic Musical Instrument - Complete In Box - Shop Stock Room Find. Released by Radio Shack in 1991 as part of their series of Concertmate Electronic Keyboards. This fantastic Concertmate 370 Portable Electronic Musical Instrument measures only 15 inches long, and its features include - 25 Sound Tone Bank, 32 Mini Keys, 2 Note Polyphonic, 19 Buit In Auto Rhythms, 4 Buit In Drum Pads and 2 Built In Demonstration Tunes. Fantastic Near Mint Condition Fully Tested and Working Condition and comes in the original box with the instruction booklet. Former Shop Display Model. Discovered in the store room of a closed down shop, had been on display for a year or so before being retired to the store room for 26 years. Fantastic Vintage Instrument that was never owned or bought. All Orders Received Before 4.00pm Monday To Fridays Are Shipped The same Day.