In order to cope with different environments and needs, MAX REPELLER S has two modes ---outdoor mode and camping mode. To activate MAX REPELLER S, Double-click the power button to enter the camping mode, and the indicator light turns green. Press the power button again to enter the outdoor mode, the indicator light turns red. Press the power button again to turn off MAX REPELLER S. Camping mode creates 10-foot zone protection for 19 hours when fully charged, while outdoor mode creates 30-foot zone protection for 12 hours.