Charge the Swatter 8 to 12 hours before use. Hold the handle and turn on Power (main) switch. Then press the Hitting switch button located on the side of the swatter till the indicator light is on and wield it to make insects touch the net surface. Turn off Power (main) switch when the Swatter is not used in order to reduce the free consumption of the batteries. Recharge the Swatter when the discharge becomes faint and the light is weak. It has three layers. It is not harmful to humans or pets.