This product is an oxygenator powered by a solar panel and also can be charged by a power adapter with the USB charging cable. It does not require any wire connection, ensuring a quick and easy installation. It helps to increase oxygen levels to fishes when fishing or in fish tanks, aquariums. 

Specifications:
Solar Panel: 5V / 1.4W
Charging Input: DC 5V / 1A
Battery: 18650 Li-ion 3.7V 2200mAh 
Air Pump: 3V / 0.5W
Min. Air Flow: 0.3L/min
External Air Stone Dia.: 5.1mm
Air Pipe Outlet Dia.: 4.4mm
Air Pipe Length: Approx. Long: 100cm(1pc); Short: 30cm
USB Cable Length: Approx. 100cm 
Working Power Range: 3.2V-4.2V 90mA
Low Power Indication Voltage(flash in green): 3.3V
Full Power Indication Voltage(red): 4.0V
Over Charge Protection Voltage: 4.2V
Working Time: Approx. 20 Hours with fully charged battery
Product Size: 120 * 78 * 40mm / 4.72 * 3.1 * 1.57in 
Product Weight: 324g / 11.43oz
Package Size: 13 * 10 * 8.5cm / 5.12 * 3.94 * 3.35in
Package Weight: 456g / 16.08oz

Package List:
1 * Oxygen Pump
3 * Air Pipe(2 long and 1 short)
2 * Air Stone
1 * USB Charging Cable
1 * User Manual (English)