Portable Small Ozone Machine for Home, Car, , Shoe Cabinet, Hunting bag USB charging: Built in lithium-ion rechargeable battery, 1800mAh, USB interface can be used with computer or mobile power supply, ultra-low power consumption Cycle mode: Long press the power button to start working, the indicator blue light is flashing, it will sleep for 8 hours after working for 3 minutes, and then so the cycle until the machine runs out of power automatically shut down (Endurance 13 days) General mode: The green light indicates that the breath is flashing, and it will be shut down automatically after working for 30 minutes (Charge after working 3 times) Strong mode: The indicator purple light breath flashing, after working for 90 minutes, it will automatically shut down (Charge after working 1 time) USB charging: Built in lithium-ion rechargeable battery, 1800mAh, USB interface can be used with computer or mobile power supply, ultra-low power consumption