Features: 1.Made of high quality ABS material, tough and durable. 2.Powered by solar energy, no battery or electricity needed, energy?saving and environmentally friendly. 3.100 degrees foldable solar panel, easy to adjust a best angle to absorb solar energy. 4.Built?in 2200mAh high capacity battery, it can work for a long time up to 20 hours once it get fully charged, meanwhile, this air pump can be charged by DC power with USB cable. 5.Internal circuit adopts imported single?chip microcomputer intelligent control, support constant pressure and constant current charging, overcharge discharge protection and low electric alarm, safe to use. Specification: Description: This is a high quality aquarium oxygen fish air pump. Made of high quality ABS material, it's tough and durable to use. Powerful, high output pumps fulfill most aquarium air requirements and are built to ensure years of dependable, trouble-free use. Rubber stabilizer feet and technologically advanced design offer smooth, quiet operation. 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, tough and durable. Elegant color and stylish design. Powered by solar energy, no battery or electricity needed, energy-saving and environmentally friendly. 100 degrees foldable solar panel, easy to adjust a best angle to absorb solar energy. Built-in 2200mAh high capacity battery, it can work for a long time up to 20 hours once it get fully charged, meanwhile, this air pump can be charged by DC power with USB cable. Internal circuit adopts imported single-chip microcomputer intelligent control, support constant pressure and constant current charging, overcharge discharge protection and low electric alarm, safe to use. Technologically advanced design offer smooth, quiet operation. 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: Type: DC air pump Material: ABS Color: White Battery: 3.7V 2200mAh 18650 Lithium battery(Included) Rated voltage: 1.8V Maximum current: 150MA dB: 50dB Minimum air flow: 0.3L/min Working hour: ≥20hours(Fully charged) Solar panel: 5V/1.4W Indicator light: Green light flicking slowly: Charging Red light flicking: Working Green light on: Fully charged Diameter of air mouth: 4.4MM(The outer air mouth is 5.1MM） Size: 13 x 8 x 4.2cm / 5.12 x 3.15 x 1.65inch(Approx.) Package Included: 1 x Aquarium Air Pump 1 x DC Charging Cable 1 x Straight through Connector 1 x Tube 2 x Bubble Stones 1 x User Manual Notice: Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. Please understand that colors may exist chromatic aberration as the different placement of pictures. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. This product is not waterproof, it can be showered normally, but it will get water if it has been exposed to the rain.