Features: 1.Made of high quality ABS material, strong and durable. 2.Elegant color and stylish design. 3.Powered by solar energy, no battery or electricity needed, energy-saving and environmentally friendly. 4.Built-in 1800mAh high capacity battery, it can work for a long time up to 22 hours once it get completely charged. 5.Technologically advanced design offer smooth, quiet operation. Specification: Description: This is a high quality aquarium oxygen fish air pump. Made of high quality ABS material, it's strong and durable to use. Powerful, high output pumps fulfill most aquarium air requirements and are built to confirm years of dependable, trouble-free use. Perfect air pump to add water movement and oxygen in the fish tank to increase the health of water and give your fish a comfortable environment. Features: Made of high quality ABS material, strong and durable. Elegant color and stylish design. Powered by solar energy, no battery or electricity needed, energy-saving and environmentally friendly. Built-in 1800mAh high capacity battery, it can work for a long time up to 22 hours once it get completely charged. Technologically advanced design offer smooth, quiet operation. Powerful, high output pumps fulfill most aquarium air requirements and are built to confirm years of dependable, trouble-free use. Perfect air pump to add water movement and oxygen in the fish tank to increase the health of water and give your fish a comfortable environment, improving the overall health of the aquarium. Specification: Condition: Brand new Type: AC air pump Material: ABS Battery: 3.7V 1800mAh 18650 Lithium battery(Included) Working Voltage: 3.0-4.25V Working Hour: About 22hours(completely charged) Solar Panel: 6V/2.4W/420MA Dimmable Control: No Air Pump: Rated Voltage: 3.5V Maximum Current: 450MA Noise of Aeration Pump: 50dB Minimum Air Spread: 1L/min Size: 20 x 17 x 16cm / 7.87 x 6.69 x 6.30inch(Approx.) Process: PET Lamination Discharge Protection Voltage: 3.0V Charging Protection Voltage: 4.25V Package Included: 1 x Aquarium Air Pump 1 x Solar Panel 1 x Accessories Package 2 x Air Stones 2 x Tubes 1 x User Manual Working Mode: Mode 1: High gear (green light continuously on) Mode 2: Low gear (dark blue light is continuously on) Mode 3: Low gear open 10 seconds stop 10 seconds. (Sky blue light is continuously on) Instructions for Use: Connect the air stones with the exhaust hole and put it into the water which needs to be oxygenated. Solar cells are facing the sunlight. There is no shield between the solar cells and the sunlight. Press the POWER switch and the aquarium air pump will start to work. Note: 1. This product is an electronic product. The aeration part of the device can not be put in water and the diversion hole can not be blocked. 2. This product is a solar energy product. The charging rate is related to the strength of sunlight. Regular cleaning of dirt on solar cells can improve the charging efficiency. 3. Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. 4. Please understand that colors may exist chromatic aberration as the different placement of pictures.