An MP3 player. Wonder of our modern economy. It's a radio, record player and even the record collection all in this tiny device.
I took it with me on my last bike tour. Listened through a set of headphones that only covered one ear, so other ear could be available for traffic.
A friend of mine jokingly suggested I bring a portable record player from the 1960s by Magnavox. Strap that to my bicycle. Looks like a suitcase. Speakers unlatch and swing out to the sides on hinges while the turntable tips down out of the case. It's real heavy and doesn't even include the record cabinet.
Are we economically better off than we were in the 1960s? It's kind of like comparing apples and oranges. They didn't even have mp3 players; this tiny kind of "record player" in the 1960s.