Others information :Voltage range: 3.0V-4.25V Maximum working current: 150+-10MA (high grade); 75+-10MA (low grade). Quiescent current: less than 500UA Discharge protection voltage: 3.0V Charging protection voltage: 4.25V Whether with light control: without light control 5. Working mode: oxygen supplying all the time or intermittently ( intermittent aerobic, continuous aerobic, automatic aerobic )  Work instructions: battery voltage 3.0V-3.6V, red light when working; battery voltage 3.6V-4.2V, light blue when working; shutdown does not light.

charging method: Method 1: USB charging (5V 1A charging) Method 2: Solar panel charging (the product is placed under outdoor sunlight) Charging indication: battery voltage 3.0V-3.9V, red light breathing indication charging when charging; The battery voltage is 3.9V-4.2V, and the blue light breathing indicator is charged when charging. Fully charged blue light is always on. 5. Instructions for use: Connect the bubble stone to the vent hole and put it into the water that needs oxygen. The solar cell is facing the sunlight. There is no obstruction between the solar cell and the sunlight. Press the switch oxygen pump to start working. Press the switch repeatedly to select Different working modes. 6. Pay attention : 1. This product is electronic product. The oxygen-increasing part of the device cannot be placed in water, the diversion hole can not be blocked, and it is more than 0.5M away from the water source. 2. This product is a solar energy product. The charging speed is related to the intensity of sunlight. Regularly clean the dirt on the solar cell to improve the charging efficiency. Packaged Included:
1 x Water Air Pump
1 x Solar Panel
1 x USB Charging Cable
1 x Soft Tube
1 x Fittings Kit