The toy can test your nerve and your reactions with 2-4 players. Grab some of your friends, each taking a hand controller. Press the centre button to begin the game. Wait nervously for the sound to stop and the light to go from red to green…and quickly press your button before your opponents! The last person to press the button will receive an electric shock. Watch out though, because pressing too soon will also shock you! A perfect party piece and ice-breaker. Requires 3 x AAA batteries (not included).WARNING: This product emits a real electric shock. Keep out of reach of children under 14 years old – read warning panel before use. Do not use if you suffer with epilepsy or any similar or related illness. May interfere with electrical devices such as pacemakers. China supplier:Email : fangzhengcn@hotmail.com Skype ID : chanceller819