... Individual 3 batteriesSpecify the size of the name:Electric MassagerSize:10.5x10.5x10CMWeight:200gVoltage:4.5v ... Small and lightweight,anytime,anywhere to enjoy massage fun,Vibrating,massage,promote blood circulationRelieve muscle aches,effectively improvechronic ... and study. Features:1 small, lightweight enjoy massage anytime2 vibration massage, promote the blood circulation3 relieve muscle soreness, ...