AQQA is a professional company that provide aquarium products. Please feel free to reach us if you have any questions about the product and how to use it. Your satisfaction is our goal, we are committed to give you the most sincere and thoughtful service. Hope to work for you!Warm Note:1. The air pump itself is not waterproof, please keep it away from water.2. Put the air pump higher than the fish tank water level to avoid malfunction or counter flow.3. Regularly clean air outlet and air stone and avoid air flow reduction and damage! Specification: Power: 1.7W/2.5W/5WSuggest tank size: 0-100 Gallon/0-140 Gallon/0-160 GallonPressure: 0.01MPa/0.02MPa/0.03MPaPower cord length: 2.5Ft/2.5Ft/2.6FtAir Flow: 1.7L/min2.5L/min/3.5L/minDimension：3.9”x2.8”1.4”/4.7”x3.35”x1.4”/4.7”x3.35”x1.4”Mode: Continuousl work /Intermittent work AQQA Aquarium air pump 2 Outlets Oxygen Pump for 2.5W and 5W, 1 Outlets Oxygen Pump for 1.7W Please choose the size according to your aquarium LED Battery Indicator Blue indicator lights help clearly know the battery level and the mode of the air pump, making it easier to operate. When using USB for recharging, the blue indicator turns on and flashes continuously; The blue light of five bars doesn't flash when the charging is completed. Low Battery Indicator: When the battery is low, the blue light of last bar will flashes continuously RECHARGEABLE AIR PUMP The aquarium air pump can be plug in and recharge to use directly. It will switch from electric to battery operated automatically when the current electrical is interrupted STURDY METAL HOOK With the metal hook, the air pump is very convenient to be used in indoor and outdoor, just hang on your tanks. NON-SLIP BASE Feet Four rubber feet are added on the base, which is able to keep it from moving a lot when it is working. The air pump may have a slight vibration during operation, you can put it on a blanket or mouse pad, which is able to keep it quieter Aquarium Heater Aquarium Sponge Filter Aquarium Wave Maker Pump Aquarium Magnet Cleaner Brush Aquarium Water Pump Aquarium Gravel Cleaner Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.2 out of 5 stars 728 4.2 out of 5 stars 1,234 4.0 out of 5 stars 1,123 4.3 out of 5 stars 710 4.1 out of 5 stars 548 3.7 out of 5 stars 2,478 Price $65.99$65.99 $23.99$23.99 $21.99$21.99 $22.99$22.99 $17.09$17.09 $35.99$35.99 no data no data no data no data no data no data