Specifications:
MaterialABSType A: AS3000Color: BlackDimension: 8×12.5×5cmPower: 3WAir Output: 3L/minAir holes: 2pcsNoise: 2.2db(A)Type B: AP402Color: White
Dimension: 7.5×12×3.5cm
Power: 3.5W
Battery: 900MA lead-acid battery
Air Output: 4L/min
Air holes: 1pcs
Noise: 2db(A)Type C: AP602Color: White
Dimension: 7.5×11×3cm
Power: 6W
Battery: 2200mAh lithium battery
Air output: 6L/min
Air holes: 2pcs
Noise: 3db(A)
Features:
- AP402 & AP602 Corded/Cordless 2 Kinds of Use Way: You can plug-in directly, or use it in outdoors after charged. Built-in 900MA/2200mAh rechargeable battery for long-time and continuous oxygen.
- Provide balanced oxygen to your aquarium tank.
- Environmentally friendly ABS housing shell, heat-resistance, low-temperature resistance, and strong impact resistance.
- Powerful motor for oxygen enrichment and the output pressure is stable.
- Ultra-quiet: Non-slip, the shock-proof padded base for more effective noise reduction.

Package included:
Type A: 
(AS3000):1 x Air Pump
or 
Type B:  
(AP402):  1 x Air Pump                 1 x Air Hose                 1 x Air Stone                 1 x Adapter Charger
or 
Type C:
 (AP602):  1 x Air Pump
                 2 x Air Hose
                 2 x Air Stone
                 1 x Adapter Charger

(Distribute the adapter according to your country.)