✔Super quiet✔: This is a super quiet aquarium oxygen pump, you may need to get close to feel its flow. ✔Super energy saving✔: Low power consumption, about 1.0W, making your aquarium more environment friendly. ✔Excellent performance✔: Aquarium oxygen pump has no electromagnetic interference, is a good neighbor of other electrical appliances. Its flow can be up to 18L / H, with 2 optional efficient air stones,it can provide up to 24 gallons of fish tank usage, your aquarium friends will surely love it. ✔Compact and easy to use✔: The pump can be attached to any place you like, and occupies little space. ✔100% Warranty✔: Original quality,professional manufacturer,provide full and reliable 1 year warranty.