Great air pump. The built-in display shows the exact pressure and the automatic switch-off. Works well with extended test. Practical travel/carrying bag. Also comes with extra tools to inflate the mattress, balls etc. The downside is that the inflation tubes are quite short. Provides suboptimal roadside ventilation for a larger truck/SUV unless the valve stem is ideally located near the 4-7 o'clock position. Also, this is the second portable Traveler I've bought and it's definitely the taller of the two.