Features: -There are two working modes, normal mode (can work continuously for 35 hours) or intermittent mode (work for 8 seconds, rest for 10 seconds, can work intermittently for 50 hours). -Easy to use, the gas volume can be easily adjusted to meet different usage requirements. -The bottom has rubber pads, which not only reduce noise but also prevent the air pump from moving excessively during operation. -Plug in and use it. If the power is interrupted, the lithium battery will automatically switch from electric mode to battery power. -It adopts double-hole air outlet and is suitable for aquariums of 30-100L. Specifications: Power: 3W Battery capacity: 2600mAH Colour: white .
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