Increase oxygen in the water and reduce harmful elements.
In case of long-term power blackout, please use inerval air pump mode (change to Lo switch). The device can continue working for approximately 20 hours (under good battery condition).
Adapted with water-free charging battery made by ISO9000 approved manufacturer.
Designed with prevention of over-discharge to prolong the life of the battery.
Can be used with air stones, air pipes or aerating ornaments.
