PURPOSE: To perform beat message on the arbitrary position of the human body in a state of lying on one's side by moving a beating ball on a first railway in the longitudinal direction of a lying board and on a second railway in the lateral direction by a position setting part.

CONSTITUTION: The mounting part of the beating ball 11 is loaded on a plunger that is the movable iron core of a solenoid 10, and plural beating balls 11 are set in the lying board 1. A deformable upper plane seat is formed on the upper plane of the lying board 1, and a person lies on the upper plane seat. The first railway 3 is formed of metal, etc., and it is installed at both ends in the short side direction of the lying board 1 advancing a direction of X that is the longitudinal direction of the lying board 1. A rack is formed on the lower plane of the first railway 3, and a first driving body 5 moves the solenoid 10 in the direction of X along the first railway 3. Both terminals of the second railway 8 are held with the first driving body 5, and the rack is formed on the lower plane of it, which moves the solenoid 10 in a direction of Y that is the short side direction of the lying board 1.