Car Power/Dry Battery Type 2Way Air Pump YH-737B(For 2 AA batteries/Cigarette lighter socket DC12V power supply).It is suitable for live bait fishing because it can be used as a car power source while riding in a car and a dry cell battery at fishing areas!When you turn off the car engine, the power automatically switches to dry batteries.[Battery life] Continuous approximately 50 hours (alkali).[Air flow rate] About 1.0 L/min.[Motor life] About 1,000 hours.[Accessories] Car power adapter for cigar lighter socket (code 3m).Drip-proof type