To provide a jet bathing device which can change a jet flow splashed to a bathtub and light of aqualight illuminating a water surface by synchronizing them with music and realizes the aforementioned movements without adding a device for analyzing the music.

A jet flow generating device JFG generates the jet flow WS in the bathtub BTB. A device body of a jet bathing device MU transmits control signals to the device JFG and controls the jet flow WS. A CPU (central processing unit) 2 downloads contents data containing music data of a cellular phone from a communication part 4 and writes the content data in a storage part 3. A music replay part 5 loads the content data, takes out Vibration signals for driving a vibrator or LED signals for driving LED (Light Emitting Diode) by synchronizing the vibrator or the LED with the music data, outputs the signals to a jet flow control part 6 or to a light control part 7, respectively, and controls the jet flow WS or the aqualight AL.