Portable oxygen pump

Portable oxygen pump.
Dual ports can charge two devices while producing oxygen, saving time.
Four-bar power indicator light.
It is designed with rounded corners, which fit the curvature of the hand and is comfortable to grip.
Strong flashlight, convenient to use at night.
It is lightweight, and easy to carry, and the metal buckle is easy to clip into the fishing box or fish tank.
With a built-in lithium battery.
It can be used for oxygen for the survival of fish, as a flashlight, or can charge mobile phones, with a USB port.
 
Instructions.
Main power switch.
Click once to turn on the charging function, and click again to turn on the flashlight function.
 
Oxygen pump switch.
After the main power switch is turned on, touch it to turn on the oxygen pump switch.
 
 
Specifications
Battery 3000mAh
Output 5V-2.1A, 5V -1A
Weight about 170gr and 0.37lb
 
Size about
Length 14cm and 5.5″
Width 6cm and 2.3″
Height 2.2cm and 0.86″

Hose length is 70cm and 27.5″
 
 
Included
One air pump
One cable
One hose
One air stone
 
 
Notes
The real product colors may be slightly different from what you see in the images.
The product dimensions may be slightly different from what is written in the product specifications.