Item Type: Solar Powered Air Pump_x000D_ Product Model: AP003_x000D_ Solar Panel: 6V 0.3W_x000D_ Charging Input: DC 5V / 1A_x000D_ Power: 0.5W_x000D_ Battery Capacity: 3.7V / 4400mA / h_x000D_ Air Pressure: 0.15mpa_x000D_ Air Volume: 2L / min_x000D_ USB Charging Time: 3-5 hours_x000D_ Working Time: About 24 hours_x000D_ Hose Length: Approx. 1 m / 3.3 ft_x000D_ _x000D_ Instructions: _x000D_ 1. Press and hold the power switch (press for 3 seconds), the blue light is on, and then start oxygen, at this time it is long-term oxygen mode._x000D_ 2. Press the power switch again (press 1 time) to switch to the intermittent mode of oxygen mode (cycle mode of 2 seconds of stop and 8 seconds of oxygen)._x000D_ 3. Charging: Please use the USB2.0 adapter charging head to charge this product. When the voltage is insufficient, the blue light will turn into red light display and enter into the blinking state, which means that the voltage is insufficient. Please charge in time. You can also give oxygen while charging Get oxygen while charging.