Received the pump when promissed, so far it has worked as advertised. I really like the auto shut off when the tire pressure reaches your selected pressure. Some advice, if you set the pressure for 32 pounds of pressure and the tire pressure is already at 32 psi or HIGHER the pump will not start, it only starts when the tire pressure is BELOW what you set psi for. I have already used it for the kids soccor balls, my vehicle tires (Ford F150) and my travel trailer tires, with air pumps that need to be plugged in the a power source, this would not work on my travel trailer because the standard 10 foot power cord would be too short for me to reach the trailer tires!. It also came in handy when having to winterize my travel trailer by pressurizing the water lines to blow out the water from the lines. Also, a great price for the convenience of not needing to plug it in to an outlet or cigarette lighter!