STRIO TRIO BATTERY 900 MAH VARIOUS VOLTAGE 2.7V (GREEN LIGHT) 3.2V (BLUE LIGHT) 4.0V (RED LIGHT) QUICKLY PRESS BUTTON 3 TIMES TO CHANGE VOLTAGE PREHEAT, QUICKLY PRESS BUTTON 2 TIMES TURN ON/OFF, QUICKLY PRESS BUTTON 5 TIMES DISPLAY OF 10 MULTIPLE COLORS IN EACH DISPLAY