Description: Just put the solar panel in a sunny spot and the solar oxygen pump starts automatically. The solar oxygen pump is especially suitable for emergency oxygen increase in a power outage, as well as oxygen increase function for field fishing and small aquatic product transportation. Features: [Two Modes]Built-in 2200mAh battery, low gear for working 16h, low gear intermittent for working 32h. [Easy to Install]The solar aerator pump has a ground plug, just stick it into the ground. [Adjustable Angle]The solar panel angle can be adjusted to receive the sunlight most sufficiently. [Solar-powered]The use of solar energy makes it eco-friendly, and maintenance-free, and solar power is much safer for your kid. [Widely Applicable]0.8L/min air volume, suitable for many kinds of containers, such as small to medium-sized ponds, outdoor fish tanks or water reservoirs, etc. Specifications: Material: ABS PET Solar Panel:6V, 2W Battery: 1*3.7V 2200mAh Lithium Battery Mode: low gear, low gear