Voltage: AC220-240v; Rated frequency: 50Hz-60Hz. Power: 30w. APPROPRITE TIMES & METHOD TO USE: * 1 Hour after waking up, 1 hour after male, before sleep, after a strenuous exercise. Place the head on part, and adjust the speed as you like, for the effective. Massage start from the arm, leg. Back, and side in order, Drink a glass of water after massage to flush to your body properly.