Feature: 1. High Performance: This solar oxygen pump is compact in size, has low noise, will not disturb others, and large air volume, can be adjusted by knob to meet different needs. 2. Solar Charging: This oxygen pump adopts solar charging, which is environment friendly, energy saving, and also be charged by DC power supply. 3. Long Battery Life: Built in large capacity lithium battery, with a cycle life of up to 500 times, can be used continuously for 15 to 20 hours when fully charged. 4. Intelligent Control: The internal circuit is controlled by imported single chip microcomputer, featuring constant voltage and current charging, overcharge and overdischarge protection, has high safety. 5. Wide Purpose: This air pump can be widely used for oxygenation of various ornamental fish, aquarium, fish tank, wild fishing and aquatic transportation etc. Specification: Item Type: Solar Air Pump Material: ABS, Silicon Solar Panel: 6V 5W Air Pressure: 900mmHg Flow: 2.5L per minute (maximum) Oxygen Pump Input Voltage: DC 5V 1A Power Supply: ≤2W Oxygen Pump Battery Capacity: 1 x 3.7V rechargeable lithium battery 6000mAh (built in) Battery Life: 15-20 hours. Package List: 1 x Solar Panel1 x Air Pump1 x Manual1 x Bracket1 x USB Cable4 x Screw6 x Hose4 x Sanding Head15 x Accessories Note: 1. This product is an electronic product. The host part cannot be placed in water, and the guide hole cannot be blocked.2. This product is a solar product. Please face the solar panel toward the sun, ensure that there is no barrier between the solar panel and the sun.3. The charging speed is related to the intense of sunlight. Regular cleaning of the dirt on the solar cell can improve the charging efficiency.