An inflatable device that floats on water has an inflatable body that has a hollow interior, a speaker unit removably secured to the body, a battery box removably secured to the body, and wiring that electrically connects the speaker unit with the battery box. The wiring is housed inside a tube that extends inside the hollow interior of the body and exits the body at least one exit location, the wiring including a first electrical connector that is removably coupled to the speaker unit, and a second electrical connector that is removably coupled to the battery box.