Shower radio
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A shower radio is a type of battery-powered radio that is waterproofed to allow it to be used in a bathroom or other wet environment. Some versions also include a CD player and/or a clock. Due to the requirements of the design, shower radios generally lack headphone jacks or AC adapter ports that could short out or electrocute the user. They also tend to lack external antennas for the same reason.
The first mass-produced shower radio was patented in 1985 by Andrew R. Mark of Stamford, Connecticut [1]. The product was marketed by Salton Inc. using the brand name Wet Tunes.
There are varying designs; some are meant to be hung from a pipe or shower rod, while others can be stuck using a suction cup or something similar to the wall of the shower facility.