To prevent spattering accidents during urination, an electrophone system is proposed. This system informs whether the urine flow reaches a "safety area." Eight sensors are mounted in this safety area. To define the safety area, spatter is checked based on the position of the urine flow. We determined appropriate distances and sizes for the targets and examined the data conforming to Fitts' Law. Then an electrophone prototype is built that generates sound feedback. The user controls their urine flow and enjoys the sounds. Future applications are discussed such as behavioural therapy or health care.