MrSteam MusicTherapy Black Square Audio Speakers With Powerful Bass"MAKING STEAM SINCE 1917" Mr. Steam TWO, (2) 6 1 2 Inch diameter in shower, flush mount two way speakers, (ROUND) and Mr. Steam TWO, (2) 7. 0625 Inch square in shower, flush mount two way speakers, (SQUARE). Custom designed to bring rich sound to your shower and to look good while doing it. Designed to be fully splash proof and flush mount in style, these speakers have a peak output of 60 Watts, with powerful bass and crystal clear mids and highs.