110/120V. Inflates twin mattress in about 1 min.|Powerful 6V Ni-mh rechargeable battery allows you to take this pump anywhere. Inflates or deflates continuously for 20 minutes on a charge and allows cordless ease while filling. Comes with both 110V and 12V DC charger and 3 valve adapters.|12V DC. 10 ft cord. Great for the car.