Realistic Stereo Amplified Listener The Stereo Amplified Listener is a personal amplifier device that has been sold through Radio Shack® stores for a number of years. Over these years it has evolved from a rather large unit using two "AA" batteries to the smaller units sold today using two "AAA" batteries. The brand name has also changed over the years from the original "Realistic®" to "Techcessories®" to "Optimus®" |  | Click picture for larger view | | |   | | | |
| The picture above shows an earlier version of the Stereo Amplified Listener at the right--probably from the 1970s. Each of these Listeners have the standard 1/8" stereo jack so you could plug in your favorite stereo earbuds or earphones.
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| A later version of the Stereo Amplifier Listener under the "Optimus" brand name from probably the 1980s. |  | Click picture for larger view | | | |
| This "Optimus" version of the Stereo Amplified Listener had a three-band equalizer and was probably available in the 1990s. |  | Click picture for larger view | | | |
| The four stereo amplified listeners showing their relative size as compared to each other.
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